Saint Thomas Christian denominations


The Saint Thomas Christian denominations are traditional Christian denominations from Kerala, India, who trace their origins to the evangelistic activity of Thomas the Apostle in the 1st century. They are also known as "Nasranis" as well. The Syriac term "Nasrani" is still used by St. Thomas Christians in Kerala.
For the first 15 centuries, they had their own leaders to whom they were obedient and who were well respected by both the people and the rulers of the country. In AD 190, Pantaenus from Alexandria visited these Christians. He found that they were using the Gospel of Matthew in the Hebrew language. Around AD 522, an Egyptian monk, Cosmas Indicopleustes, visited the Malabar Coast. He mentions Christians in a country called Male, where pepper grows, in his book Christian Topography. This shows that until the 6th century these Christians had been in close contact with Alexandria.
In AD 883, Alfred the Great, King of Wessex, England reportedly sent gifts to Mar Thoma Christians of India through Sighelm, bishop of Sherborne. Around AD 1292, Marco Polo on his return journey from China visited Kerala, mentions that, "The people are idolaters, though there are some Christians and Jews among them".
It is believed that in AD 768, Christians from Edessa arrived in Kerala under the leadership of Thomas of Cana, and in 825, another group joined them. They had their own bishops visiting them from Persia. Though the Saint Thomas Christians welcomed them, these bishops had not made any effort to subjugate them. Saint Thomas Christians remained as an independent group, their bishops coming from the Church of the East until the 16th century.
Saint Thomas Christians were greatly affected by the arrival of the Portuguese in India in 1498. The Portuguese attempted to bring the community under the auspices of Latin Rite Catholicism, resulting in permanent rifts in the community.

Churches within Saint Thomas Christian tradition

Their traditions go back to first-century Christian thought, and the seven "and a half" churches established by Thomas the Apostle during his mission in Malabar. These are located at Kodungalloor, Paravur, Palayoor, Kokkamangalam, Niranam, Nilackal, Kollam, and the Thiruvithamcode Arappally in Kanyakumari district.

Nasrani people

The Nasranis are an ethnic people, and a single community. As a community with common cultural heritage and cultural tradition, they refer to themselves as Nasranis. However, as a religious group, they refer to themselves as Mar Thoma Khristianis or in English as Saint Thomas Christians, based on their religious tradition of Syriac Christianity.
However, from a religious angle, the Saint Thomas Christians of today belong to various denominations as a result of a series of developments including Portuguese persecution, reformative activities during the time of the British, doctrines and missionary zeal influence were in charge of temporal affairs. They had a liturgy-centered life with days of fasting and abstinence. Their devotion to the Mar Thoma tradition was absolute. Their churches were modelled after Jewish synagogues. "The church is neat and they keep it sweetly. There are mats but no seats. Instead of images, they have some useful writing from the holy book."
In short, the St. Thomas Christians of Kerala have blended well with the ecclesiastical world of the Eastern Churches and with the changing socio-cultural environment of their homeland. Thus, the Malabar Church was Hindu or Indian in culture, Christian in religion, and Judeo-Syriac-Oriental in terms of origin and worship.

Apostolic origin

According to the 1st century annals of Pliny the Elder and the author of Periplus of the Erythraean sea, Muziris in Kerala could be reached in 40 days' time from the Egyptian coast purely depending on the South West Monsoon winds. The Sangam works Puranaooru and Akananooru have many lines which speak of the Roman vessels and the Roman gold that used to come to the Kerala ports of the great Chera kings in search of pepper and other spices, which had enormous demand in the West.
The lure of spices attracted traders from the Middle East and Europe to the many trading ports of Keralaputera — Tyndis,, Muziris, near Kodungallur, Niranam, Bacare, Belitha, and Comari long before the time of Christ. Thomas the Apostle in one of these ships, arrived at Muziris in 52, from E’zion-ge’ber on the Red Sea. He started his gospel mission among the Jews at "Maliyankara" on the sea coast.
Jews were living in Kerala from the time of Solomon. Later, large numbers of them arrived in 586 BC and 72 AD. The drawings and its captions on the wall of the only remaining Jewish Synagogue in Kerala, at Mattancherry, Kochi near Ernakulam endorse these facts.
Its traditionally believed that during his stay in Kerala, the Apostle baptized the Jews and some of the wise men who adored the Infant Jesus. The Apostle established seven "and a half" churches in Malabar at Kodungalloor, Paravur, Palayoor, Kokkamangalam, Niranam, Nilackal, Kollam, and the Thiruvithamcode Arappally in Kanyakumari district.
The Apostle also preached in other parts of India. The visit of the Apostle Thomas to these places and to Mylapore on the East coast of India can be read in the Ramban Songs of Thomas Ramban, set into 'moc', 1500. He was martyred in 72 at Little Mount, a little distant from St. Thomas Mount, and was buried at San Thome, near the modern city of Chennai. The body of Apostle Thomas was translated to Edessa, Iraq. It is now in Ortona, Italy. Relics of Apostle Thomas were translated to the San Thome Cathedral in Chennai and to St Thomas Church in Palayur, near Guruvayoor at Chavakkad Taluk, Thrissur District in Kerala.
Several ancient writers mention India as the scene of St. Thomas’ labours. Ephrem the Syrian writes in the forty-second of his "Carmina Nisibina" that the Apostle was put to death in India, and that his remains were subsequently buried in Edessa, brought there by a merchant. St. Ephraem in a hymn about the relics of St. Thomas at Edessa depicts Satan exclaiming, "The Apostle whom I killed in India comes to meet me in Edessa." Gregory Nazianzen,, in a homily says; "What! were not the Apostles foreigners? Granting that Judea was the country of Peter, what had Saul to do with the Gentiles, Luke with Achaia, Andrew with Epirus, Thomas with India, Mark with Italy?." Ambrose writes "When the Lord Jesus said to the Apostles, go and teach all nations, even the kingdoms that had been shut off by the barbaric mountains lay open to them as India to Thomas, as Persia to Mathew."
There are other passages in ancient liturgies and martyrologies which refer to the work of St. Thomas in India. These passages indicate that the tradition that St. Thomas died in India was widespread among the early churches.
Many writers have mentioned that the Apostle established seven "and a half" churches in Malabar. They are:
  1. Maliankara - Kodungalloor
  2. Kottakkavu Paravur
  3. Niranam
  4. Palayoor
  5. Nilackal
  6. Kokkamangalam
  7. Kollam
  8. Thiruvithancode - This church made on land donated by the local king or arajan
Doctrine of the Apostles states that, "India and all its countries...received the Apostle’s hand of priesthood from Judas Thomas…." From 345 AD, when Knanaya Christians arrived from Persia, they had continued the relationship with their home Church in Persia, which was also established by St. Thomas the Apostle.

Rough chronology

Following is a rough chronology of events associated with St. Thomas Christianity.

1st century

Doctrine of the Apostles states that, "India and all its countries... received the Apostle’s hand of priesthood from Judas Thomas…." From an early period the Church of St. Thomas Christians came into a lifelong relationship with the Church of the East, which was also established by Thomas the apostle according to early Christian writings. The Primate or Metropolitan of Persia consecrated bishops for the Indian Church, which brought it indirectly under the control of Seleucia.
The Church of the East traces its origins to the See of Seleucia-Ctesiphon, said to be founded by Thomas the Apostle. Other founding figures are Saint Mari and Saint Addai as evidenced in the Doctrine of Addai and the Holy Qurbana of Addai and Mari. This is the original Christian church in what was once Parthia: eastern Iraq and Iran. The See of Seleucia-Ctesiphon developing within the Persian Empire, at the east of the Christian world, rapidly took a different course from other Eastern Christians.
The First Council of Nicaea, held in Nicaea in Bithynia, convoked by the Roman Emperor Constantine I in 325, was the first Ecumenical council of the Christian Church, and most significantly resulted in the first uniform Christian doctrine, called the Nicene Creed. It is documented that Mar John, the Bishop of Great India attended the council. The prelate signs himself as '''"John the Persian presiding over the Churches in the whole of Persia and Great India."
Some centuries following, the Persian Church suffered severe persecutions. The persecuted Christians and even bishops, at least on two occasions, sought an asylum in Malabar.
The Rock crosses of Kerala found at St.Thomas Mount and throughout Malabar coast has inscriptions in Pahlavi and Syriac. It is dated from before the 8th Century.
In 825, the arrival of two bishops are documented, Mar Sapor and Mar Prodh. Le Quien says that "these bishops were Chaldaeans and had come to Quilon soon after its foundation. They were men illustrious for their sanctity, and their memory was held sacred in the Malabar Church. They constructed many churches and, during their lifetime, the Christian religion flourished especially in the kingdom of Diamper."
The beginning of Kolla Varsham resulted in the origin of Christianity in Kerala as an individual religion outside vedic Vaishnavism

The Church after Thomas

In 190, Pantaenus, probably the founder of the famous Catechetical School of Alexandria, visited India and the Nasranis.
The First Council of Nicaea, held in Nicaea in Bithynia, convoked by the Roman Emperor Constantine I in 325, was the first Ecumenical council of the Christian Church, and most significantly resulted in the first uniform Christian doctrine, called the Nicene Creed. Many historians have written that ‘’Mar John, the Bishop of Great India’’ attended the council.
Church life bore characteristics of a church which had its origin and growth outside the Graeco-Roman world. There was no centralized administrative structure on a monarchical pattern. The territorial administrative system which developed after the diocesan pattern within the eastern and western Roman empires did not exist in the Indian Church. "They have the uncorrupted Testament Which they believe was translated for them by St. Thomas the apostle himself."
Theophilus as recorded by church historian Philostorgius mentions about a church, priests, liturgy, in the immediate vicinity of the Maldives, which can only apply to a Christian church and faithful on the adjacent coast of India. The people referred to were the Christians known as a body who had their liturgy in the Syriac language and inhabited the west coast of India, i.e., Malabar.
Shapur II the Great was the ninth King of the Sassanid Empire from 309 to 379. During that period, there was persecution against Christians. So in AD 345 under the leadership of Thomas of Cana 72 families landed at Muziris near Cranganore. They formed the group known as Knanaya Christians. They cooperated with the Malankara Church, attended worship services together but remained a separate identity They had regular visitors from their home land. Some of their priests and bishops visited them. But these visiting bishops had no authority over Saint Thomas Christians.
The Church is mentioned by Cosmas Indicopleustes. He notes that, "There are Christians and believers in Taprobane, in Malabar where pepper grows there is a Christian church. At a place known as Kalyan, there is a bishop sent from Persia.”.
St. Gregory of Tours, before 590, reports that Theodore, a pilgrim who had gone to Gaul, told him that in that part of India where the corpus of St. Thomas had first rested, there stood a monastery and a church of striking dimensions and elaborately adorned, adding: "After a long interval of time these remains had been removed thence to the city of Edessa."

Early rituals and culture

The life-style of the Saint Thomas Christians might be stated as "Indian in culture, Christian in faith and Oriental in worship".

Social and culture

Socially and culturally these Saint Thomas Christians remain as a part of the wider Indian community. They keep their Indian social customs, names and practices relating to birth, marriage, and death. They have Biblical names. At the same time they follow a number of Jewish customs like worship, baptism, wedding and other ceremonies which are entirely different from Western Churches.

Collection of deeds

The rulers of Kerala, always appreciated the contributions of St. Thomas Christians to the country and society. Thazhekad sasanam and deeds on copper plates bear witness to it. Five sheets of the three copper plates are now in the custody of St. Thomas Christians.
  1. Thazhekad sasanam is one of the earliest surviving edicts granting special privileges to the St. Thomas Christians. The edict dating back to about 340-360 AD was written on stone and provides proof of the early existence of St. Thomas Christians in Kerala.
  2. Iravi Corttan Deed: In the year 774 AD. Sri Vira Raghava Chakravarti, gave a deed to Iravi Corttan of Mahadevarpattanam.
  3. Tharissa palli Deed I: Perumal Sthanu Ravi Gupta gave a deed in 849 AD, to Isodatta Virai for Tharissa Palli at Curakkeni Kollam. According to historians, this is the first deed in Kerala that gives the exact date.
  4. Tharissa palli Deed II: As Continuation of the above deed was given after 849 AD.

    First 15 centuries

In 883 King Alfred the great of Wessex in England sent donations to the Christians in Malabar. Marco Polo visited Malabar on his return journey from China. He wrote about the people whom he saw in Malabar, this way. "The people are idolaters, though there are some Christians and Jews among them. They speak a language of their own. The king is tributary to none."

Persian Rock crosses

The two Rock crosses of Kerala are found at Kottayam, one each at Kadamattam, Muttuchira and at St.Thomas Mount, in Mylapore. and throughout Malabar coast has inscriptions in Pahlavi and Syriac. The earliest is the small cross at Kottayam dated 7th century.

Persian bishops in Malabar

In 829 CE, the Udayamperoor church was built.
A priest from Persia Mar Abo came to Kadamattom. With the help of a widow and her son, he built a small hut and lived there. He called the boy Poulose. Mar Abo taught him Syriac and later ordained him as a deacon. After this deacon Poulose disappeared for twelve years. It is said that he was a well known exorcist. He is well known in Kerala as Kadamattathu Kathanar. Mar Abo died and was buried in Thevalakara church.

History of Syro-Malabar Catholic Churches in Malankara

When the Portuguese arrived in 1498, the Christians of St. Thomas in Kerala had free exercise of their religion.
There are many accounts of visits from Rome, before the arrival of Portuguese.
John of Monte Corvino, was a Franciscan missionary who traveled from Persia and moved down by sea to India, in 1291
Odoric of Pordenone who arrived in India in 1321. He visited Malabar, landing at Pandarani, at Cranganore, and at Kulam or Quilon.
Father Jordanus, a Dominican, followed in 1321-22. He reported to Rome, apparently from somewhere on the west coast of India, that he had given Christian burial to four martyred monks. Jordanus, between 1324 and 1328, probably visited Kulam and selected it as for his future work. He was appointed a bishop in 1328 and nominated by Pope John XXII in his bull Venerabili Fratri Jordano to the see of Columbum or Kulam on 21 August 1329. This diocese was the first in the whole of the Indies, with jurisdiction over modern India, Pakistan, Afghanistan, Bangladesh, Burma, and Sri Lanka.
In 1347, Giovanni de' Marignolli visited Malabar.
Another prominent Indian traveler was Joseph, priest over Cranganore. He journeyed to Babylon in 1490 and then sailed to Europe and visited Portugal, Rome, and Venice before returning to India. He helped to write a book about his travels titled The Travels of Joseph the Indian which was widely disseminated across Europe.

Medieval period

Prior to the Portuguese arrival in India in 1498, the Church of the East's See of Seleucia-Ctesiphon provided "Prelates" to the Saint Thomas Christians in India. This practise continued even after the arrival of the Portuguese till the Synod of Diamper in 1599.
There are many accounts of missionary activities before the arrival of Portuguese in and around Malabar. John of Monte Corvino was a Franciscan sent to China to become prelate of Peking about the year 1307. He traveled from Persia and moved down by sea to India in 1291, to the South India region or "Country of St. Thomas". There he preached for thirteen months and baptized about one hundred persons. From there Monte Corvino wrote home, in December 1291. That is one of the earliest noteworthy accounts of the Coromandel coast furnished by any Western European. Traveling by sea from Mailapur, he reached China in 1294, appearing in the capital "Cambaliech"
Odoric of Pordenone arrived in India in 1321. He visited Malabar, touching at Pandarani, at Cranganore, and at Kulam or Quilon, proceeding thence, apparently, to Ceylon and to the shrine of St. Thomas at Mailapur, South India. He writes he had found the place where Thomas was buried.
Father Jordanus, a Dominican, followed in 1321–22. He reported to Rome, apparently from somewhere on the west coast of India, that he had given Christian burial to four martyred monks. Jordanus, between 1324 and 1328, probably visited Kulam and selected it as the best centre for his future work; it would also appear that he revisited Europe about 1328, passing through Persia, and perhaps touching at the great Crimean port of Soidaia or Sudak. He was appointed a bishop in 1328 and nominated by Pope John XXII in his bull Venerabili Fratri Jordano to the see of Columbum or Kulam on 21 August 1329. This diocese was the first in the whole of the Indies, with jurisdiction over modern India, Pakistan, Afghanistan, Bangladesh, Burma, and Sri Lanka.
Either before going out to Malabar as bishop, or during a later visit to the west, Jordanus probably wrote his Mirabilia, which from internal evidence can only be fixed within the period 1329–1338; in this work he furnished the best account of Indian regions, products, climate, manners, customs, fauna and flora given by any European in the Middle Ages – superior even to Marco Polo's. In his triple division of the Indies, India Major comprises the coast from Malabar to Cochin China; while India Minor stretches from Sindh to Malabar; and India Tertia includes a vast undefined coast-region west of Baluchistan, reaching into the neighborhood of, but not including, Ethiopia and Prester John's domain.
In 1347, Giovanni de' Marignolli visited the shrine of St Thomas in South India, and then proceeded to what he calls the kingdom of Saba, and identifies with the Sheba of Scripture, but which seems from various particulars to have been Java. Taking ship again for Malabar on his way to Europe, he encountered great storms.
Another prominent Indian traveler was Joseph, priest over Cranganore. He journeyed to Babylon in 1490 and then sailed to Europe and visited Portugal, Rome, and Venice before returning to India. He helped to write a book about his travels titled The Travels of Joseph the Indian which was widely disseminated across Europe.
When the Portuguese arrived on the Malabar Coast, the Christian communities that they found there had had longstanding traditional links with the See of Seleucia-Ctesiphonin Mesopotamia.
During the subsequent period, in 1552, a split occurred within the Assyrian Church of the East forming the Chaldean Church, the latter entered into communion with Rome. After the split each church had its own patriarch; the Chaldean Church was headed by the Patriarch Mar Yohannan Sulaqa. Both claim to be the rightful heir to the East Syriac tradition. It is difficult to see the precise influence of this schism on the Church of Malabar as there was always overtones to Rome in earlier centuries. Apparently, both parties sent bishops to India.
The last East Syriac Metropolitan before the schism, Mar Jacob, died in 1552. Catholicos Simeon VII Denkha sent a prelate to India, in the person of Mar Abraham, who was later to be the last Syrian Metropolitan of Malabar, after having gone over to the Chaldaean side. It is not known when he arrived in Malabar, but he must have been there already by 1556. Approximately at the same time, Chaldaean Patriarch Abdisho IV, the successor of Yohannan Sulaqa, sent the brother of John, Mar Joseph, to Malabar as a Chaldaean bishop; although consecrated in 1555 or 1556, Mar Joseph could not reach India before the end of 1556, nor Malabar before 1558. He was accompanied by another Chaldaean bishop, Mar Eliah.

Colonialism and St Thomas Christians

Portuguese

The Portuguese erected a Latin diocese in Goa and another at Cochin in the hope of bringing the Thomas Christians under their jurisdiction. In a Goan Synod held in 1585 it was decided to introduce the Latin liturgy and practices among the Thomas Christians.
Aleixo de Menezes, Archbishop of Goa from 1595 until his death in 1617 decided to bring the Kerala Christians to obedience after the death of Bishop Mar Abraham, an obedience that they conceived as complete conformity to the Roman or ‘Latin’ customs. This meant separating the Nasranis not only from the Catholicosate of Seleucia-Ctesiphon, but also from the Chaldaean Patriarchate of Babylon, and subjecting them directly to the Latin Archbishopric of Goa.
The Portuguese refused to accept the legitimate authority of the Indian hierarchy and its relation with the East Syriac Christians, and in 1599 at the Synod of Diamper, the Portuguese Archbishop of Goa imposed a large number of Latinizations. The Portuguese succeeded in appointing a Latin bishop to govern the Thomas Christians, and the local Christians’ customs were officially anathematised as heretical and their manuscripts were condemned to be either corrected or burnt. The Portuguese padroado was extended over them. From 1599 up to 1896 these Christians were under the Latin Bishops who were appointed either by the Portuguese Padroado or by the Roman Congregation of Propaganda Fide. Every attempt to resist the latinization process was branded heretical by them. Under the indigenous leader, archdeacon, the Thomas Christians resisted, but the result was disastrous.
The oppressive rule of the Portuguese padroado provoked a violent reaction on the part of the indigenous Christian community. The first solemn protest took place in 1653, known as the Koonan Kurishu Satyam. Under the leadership of Archdeacon Thomas, a part of the Thomas Christians publicly took an oath in Matancherry, Cochin, that they would not obey the Portuguese bishops and the Jesuit missionaries. In the same year, in Alangad, Archdeacon Thomas was ordained, by the laying on of hands of twelve priests, as the first known indigenous Metropolitan of Kerala, under the name Mar Thoma I.
After the Coonan Cross Oath, between 1661 and 1662, out of the 116 churches, the Catholics claimed eighty-four churches, and the Archdeacon Mar Thoma I with thirty-two churches. The eighty-four churches and their congregations were the body from which the Syro Malabar Catholic Church have descended. The other thirty-two churches and their congregations were the body from which the Syriac Orthodox, Thozhiyur, Mar Thoma , Syro Malankra Catholic Church have originated. In 1665, Mar Gregorios Abdul Jaleel, a Bishop sent by the Syriac Orthodox Patriarch of Antioch arrived in India. This visit resulted in the Mar Thoma faction claiming spiritual authority of the Antiochean Patriarchate and gradually introduced the West Syriac liturgy, customs and script to the Malabar Coast.
The arrival of Mar Gregorios in 1665 marked the beginning of the association with the Syriac Orthodox Church of Antioch. Those who accepted the West Syriac theological and liturgical tradition of Mar Gregorios became known as Jacobites. Those who continued with East Syriac theological and liturgical tradition and stayed faithful to the Synod of Diamper are known as the Syro-Malabar Catholic Church in communion with the Catholic Church. They got their own Syro-Malabar Hierarchy on 21 December 1923 with the Metropolitan Mar Augustine Kandathil as the Head of their Church.
St. Thomas Christians by this process were divided into East Syriac and West Syriac branches.
On 4 May 1493, Pope Alexander VI granted Portugal the right to develop and send missions east of a demarcation line. When India had been reached, Portugal assumed that India was theirs to develop.
On 20 May 1498, Vasco de Gama landed at Kappad near Kozhikode.
In 1499, explorer Pedro Álvares Cabral landed at Kozhikode.
In 1500, Joseph, a priest, told the Pope Alexander VI, in an audience, that Indian Christians accept the Patriarch of Babylon as their spiritual leader.
On 26 November 1500, Franciscan Friars landed at Cochin.
On 7 November 1502 de Gama lands at Cochin.
When the Portuguese first discovered the Christians, they felt satisfied that their centuries-old dream of discovering eastern Christians had been fulfilled. They set great hopes on the St.Thomas Christians. These Christians too on their part experienced a spontaneous relief and joy at the arrival of powerful Christians from the West and desired the newcomers' help to strengthen their own privileges in India. So their arrival was enthusiastically welcomed by the local church. In fact, when Vasco da Gama arrived at Cochin on his second voyage, a delegation of Thomas Christians went and met him and implored protection.
In 1503, Dominican Priests, Catholic missionaries, were in Kochi.
In 1503, Mar Yabella, Mar Denaha and Mar Yakoob from Persia went to Kerala.
In 1503 the Portuguese commenced work on Cochin Fort and the Santa Cruz church.
There were about thirty thousand St. Thomas families in Malabar in 1504. A letter written by East Syriac bishops announces the arrival of the Portuguese and the friendly relationship between them and the St. Thomas Christians.
Cordial relations continued for two decades. However, Portuguese penetrating into the interior where they actually came face-to-face with St. Thomas Christians, realized that these Christians were neither subject to Rome, nor were they following Church traditions. To their dismay they found that these Christians were followers of the East Syriac Church, and its bishops looked after them, and the Patriarch in Babylonia was considered their ecclesiastical superior. Since the Pope had granted to the Portuguese crown sovereign rights over the eastern lands which come under their sway, the Portuguese thought, that is their right to bring the Thomas Christians under their control. To achieve this aim, the Portuguese worked among the local church for one and a half centuries.
The Portuguese missionaries were ignorant of the Oriental traditions of the Indian Church. They were convinced that anything different from the Western Church was schismatic and heretical. Hence they wanted to Latinize the Syrian Christians of India. The visitors were appalled at the tolerance for other religions that was displayed by the locals.
In 1514, the Portuguese Padroado began. In 1514 Jewish people migrated from Kodungalloor to Kochi.
On 12 June 1514 the Portuguese colony at Funchal began their dominion over Christians in India.
On 23 December 1524 de Gama was buried at St. Francis Church, Fort Cochin.
In 1534 the Goa Catholic Diocese was erected. The parishes of Kannur, Cochin, Quilon, Colombo and Sao Tome were part of it.
In 1540 Franciscan Fr. Vincent De Lagos started the Cranganore Seminary to train native priests.
On 6 May 1542 St. Francis Xavier, Apostolic Nuncio in the East, reached Goa. He was in Travancore between 1544 and 1545.
In 1548 a Dominican Monastery was founded in Cochin.
In 1549 Abuna Jacob, a Chaldean Bishop, stayed at St. Antonio Monastery, Cochin.
In 1550, the first Jesuit House was erected in Kochi.
Xavier died on 3 December 1552.
Mar Jacob, the last East Syriac bishop, led the Church until his death in 1552. After his death, the Roman Catholics tightened their efforts to subdue the Church. They directed their energy towards terminating the arrival of bishops from Babylon. Even those who came disguised were caught and executed or tortured into embracing Roman Catholicism. Two or three bishops did arrive from the East Syriac Church after the death of Jacob and were harassed. Mar Abraham, who was among them, led the local church until 1599.
During the subsequent period, in 1552, a split occurred within the Church of the East. Part of it joined Rome, so that besides the Catholicosate of the East another, Chaldean Patriarchate was founded, headed by the Patriarch Mar Yohannan Sulaqa. Both claim to be the rightful heir to the East Syriac tradition. It is difficult to see the precise influence of this schism on the Church of Malabar as there was always overtones to Rome in earlier centuries. Apparently, both parties sent bishops to India.
The last East Syriac Metropolitan before the schism, Mar Jacob, died in 1552. Catholicos Simeon VII Denkha sent a prelate to India, in the person of Mar Abraham, who was later to be the last Syrian Metropolitan of Malabar, after having gone over to the Chaldaean side. It is not known when he arrived in Malabar, but he must have been there already by 1556. Approximately at the same time, Chaldaean Patriarch Abdisho IV sent the brother of John, Mar Joseph, to Malabar as a Chaldaean bishop. Although consecrated in 1555 or 1556, Mar Joseph could not reach India before the end of 1556, nor Malabar before 1558. He was accompanied by another Chaldaean bishop, Mar Eliah.
The Portuguese erected a Latin diocese in Goa in 1534 and another at Cochin in 1558 in the hope of bringing the Thomas Christians under their jurisdiction. In a Goan Synod held in 1585 it was decided to introduce the Latin liturgy and practices among the Thomas Christians.
The Portuguese built the Mattancherry Palace for the King of Cochin in 1555.
Pope Paul IV erected the Diocese of Cochin in 1557. The canonization process of Francis Xavier began at Cochin.
The pope erected the 1565 Archdiocese of Angamaly in 1565.
The Jesuits started the seminary at Vaippicotta in 1577.
The Roman Catholic order of Augustinians reached Cochin in 1579.
In 1583, Bishop Mar Abraham convoked a synod at Angamaly.
Aleixo de Menezes, Archbishop of Goa from 1595 until his death in 1617 decided to bring the Kerala Christians under obedience after the death of Bishop Mar Abraham, an obedience that they conceived as complete conformity to the Roman or ‘Latin’ customs. This meant separating the Nasranis not only from the Catholicosate of Seleucia-Ctesiphon, but also from the Chaldaean Patriarchate of Babylon, and subjecting them directly to the Latin Archbishopric of Goa.
In 1597, Bishop Mar Abraham, the last foreign Archbishop, died and was buried at St. Hormis church, Angamaly.

The Synod of Diamper (1599)

Immediately after the death of the local bishop, Mar Abraham, in 1599, Archbishop of Goa Aleixo de Menezes convoked a Synod of Diamper and imposed Latinization and Western ecclesiastical traditions on the local Church of India. The Portuguese extended the Padroado Agreement in their evangelization programme over India, and therefore brought the Indian Church under Catholic jurisdiction.
Menezes controlled the synod completely. He convoked it, presided over it, framed its decrees and executed them. The synod lasted for eight days. Almost all of the decrees were framed not in the synod after due discussion but 15 days or earlier prior to the meeting. Many of the decrees were framed after the Synod as the archbishop desired. The synodal decrees were passed by threats and terror methods, and autocratically as desired by the archbishop. The decrees forced conformance of the local church to the practices of Roman Catholics, in faith, polity, and discipline. It decreed submission to the pope. The Assyrian Patriarch of Babylon was condemned as a heretic and contact with him declared highly perilous inviting spiritual dangers. Additionally, The Malabar church was required to follow the norms declared by the Council of Trent. Priests must be celibate. The church had to be divided into parishes with the parish priest directly appointed by the Portuguese church authorities, replacing the native regime and bishopric. The powers and offices of the Roman bishop clashed with that of the archdeacon, so the latter's office was weakened, though there was still an incumbent. The church was required to abandon perceived "errors" which Jesuits believed had crept into its life from the Indian milieu. All Syriac books had to be handed over for burning so that no memory of those rites remained.
The Catholic Church appointed Fr. Francis Roz bishop of Angamaly in 1599.
In August, 1600 Padroado rule was imposed on the Nasranis.
The church appointed Roz as the first Latin bishop of the St. Thomas Christians in 1601.
The church erected the Diocese of Cranganore in 1609. They suppressed the Archdiocese of Angamaly.
The Metropolitan of Goa limited the pastoral jurisdiction of Nasranis to Malabar in 1610.
A Dominican Seminary was started at Kaduthuruthy in 1624.
In 1626, Edappally Ashram was started for the religious community of St. Thomas Christians.
About half of the people did not yield to Rome however, and although through this period the local church lacked adequate knowledge of theology and church history, it still maintained its Eastern character and ecclesiastical freedom. Among all the efforts that were undertaken to subdue the Thomas Christians, the efforts of the Jesuits, a religious order that had been framed in the context of reformation in Europe, were notable. They established a clergy training centre at Vaipikotta to train native clergy in Catholic style. The major architects behind the convocation, deliberations, framing and executing the decrees of the Synod, were the Vaipikotta Jesuits. Apart from these the administration of the local church was also entrusted to them. Until 1653, three Jesuit bishops ruled over the church executing the decrees of that Synod.
These events immediately followed the synod:
The Synod has since been criticized by modern scholars, both ecclesiastical and secular. The impact of the synod on the local church was decisive. Roman Catholicism was firmly established. The Synod was a turning point in the history of the Malabar Church. This relationship continued till the beginning of the second half of the 17th century.
Francis Roz was the first Roman Catholic bishop over the Thomas Christians soon after the Synod. Because he had been the main architect behind the success of Udayamperoor, he was given the see over the local church. His rule lasted for 24 years. During that time he tried his best to Romanize the Thomas Christians in worship, administrative systems, customs, and discipline. Although the Synod had instructed the liturgy to be modified in accordance with the Roman custom, this was sternly opposed by the St.Thomas Christians. Therefore, Roz advocated a modified form of the ancient liturgy of the Saint Thomas Christians. He centralized in himself all authority reducing almost to nothing the powers of the archdeacon, palliyogams and kathanars of the St. Thomas’ Church. This authority continued during the episcopates of Roz' two successors, Stephen Britto and Francis Garzia.
Archdeacon George of the Cross, who had been subordinated under Roz and Britto died in 1640. He was succeeded by his nephew, Archdeacon Thomas Parambil. Parambil did not cooperate with Garzia. Garzia used both ecclesiastical and civil powers to suppress the archdeacon.
The Portuguese refused to accept the legitimate authority of the Indian hierarchy and its relation with the East Syriac Christians, and in 1599 at the Synod of Diamper, the Portuguese Archbishop of Goa imposed a large number of Latinizations. The Portuguese succeeded in appointing a Latin bishop to govern the Thomas Christians, and the local Christians’ customs were officially anathematised as heretical and their manuscripts were condemned to be either corrected or burnt. The Portuguese padroado was extended over them. From 1599 up to 1896 these Christians were under the Latin Bishops who were appointed either by the Portuguese Padroado or by the Roman Congregation of Pro da Fide. Every attempt to resist the latinization process was branded heretical by them. Under the indigenous leader, archdeacon, the Thomas Christians resisted, but the result was disastrous.
In 1562, a Syrian bishop named Ahatallah arrived in India, claiming to be a new Patriarch of India sent by the Pope. Deciding he was an impostor, the Portuguese arrested him and arranged for him to be sent to Europe for his case to be decided. Archdeacon Thomas strongly protested and demanded to see Ahatallah in Chochin, but the Portuguese refused, saying that he had already been sent to Goa. Ahatallah was never heard from in India again, and the rumor soon spread that the Portuguese had murdered him, fomenting discontent in the Saint Thomas Christian community and leading directly to the Coonan Cross Oath.

The Coonan Cross revolt

The oppressive rule of the Portuguese padroado provoked a reaction on the part of the Christian community. The first protest took place in 1653, known as the Koonan Kurishu Satyam. Under the leadership of Archdeacon Thomas, a part of the Thomas Christians publicly took an oath in Matancherry, Cochin, that they would not obey the Portuguese bishops and the Jesuit missionaries By the Father, Son and Holy Spirit that henceforth we would not adhere to the Franks, nor accept the faith of the Pope of Rome.. In the same year, in Alangad, Archdeacon Thomas was ordained, by the laying on of hands of twelve priests, as the first known indigenous Metropolitan of Kerala, under the name Mar Thoma I.
After the Coonan Cross Oath, between 1661 and 1662, out of the 116 churches, the Catholics claimed seventy-two churches, leaving Archdeacon Mar Thoma I thirty-two churches and twelve churches being shared. The seventy-two churches and their congregations were the body from which the Syro Malabar Catholic Church have descended. The other thirty-two churches and their congregations were the body from which the Syriac Orthodox, Thozhiyur, Mar Thoma , Syro Malankra Catholic Church have originated.
In 1665, Mar Gregorios Abdul Jaleel, a Bishop sent by the Syriac Orthodox Patriarch of Antioch arrived in India and the group under the leadership of the Archdeacon Thomas welcomed him. This visit resulted in the Mar Thoma party claiming spiritual authority of the Antiochean Patriarchate and gradually introduced the West Syriac liturgy, customs and script to the Malabar Coast.
The arrival of Mar Gregorios in 1665 marked the beginning of a formal association of the Thomas Christians with the Syriac Orthodox Church of Antioch. Those who accepted the West Syriac theological and liturgical tradition of Mar Gregorios became known as Jacobites. Those who continued with East Syriac theological and liturgical tradition and stayed faithful to the Synod of Diamper are known as the Syro-Malabar Catholic Church in communion with the Catholic Church. They got their own Syro-Malabar Hierarchy on 21 December 1923 with the Metropolitan Mar Augustine Kandathil as the Head of their Church.
St. Thomas Christians by this process got divided into East Syriac and West Syriac branches.

Further divisions

In 1772 the West Syriac Christians under the leadership of Kattumangattu Abraham Mar Koorilose, Metropolitan of Malankara, formed the Malabar Independent Syrian Church.
From 1816 onward, the Anglican C.M.S. missionaries helped the Malankara Church through their Help Mission. But as a protest against the interference of the Anglican Church in the affairs of the Malankara Church, the Metropolitan, Cheppad Mar Dionysius, convened a Synod at Mavelikara on 16 January 1836. There it was declared that Malanakara Church would be subject to the Syrian traditions and Patriarch of Antioch. The declaration resulted in the separation of the CMS missionaries from the communion with the Malankara Church. However a minority from the Malankara Church, who were in favor of the reformed ideologies of the missionaries, stood along with them and joined the CMS. These Saint Thomas Anglicans or Anglican Syrian Christians, were the first reformed group from among the Saint Thomas Christians. They joined the missionaries in their evangelical activities among the non-Christians and worked along with the missionaries in their reformative and educational activities. In 1879, the Anglican diocese of Travancore and Cochin was established, in Kottayam. On 27 September 1947, a little over a month after the Indian independence, the Anglican Church in South India united with similar other reformed Churches in the region and formed the Church of South India; an autonomous Indian church within the Anglican Communion. Even while being in Anglican faith tradition, culturally, socially and linguistically CSI Syrian Christians have much in common with the other Syrian Christian groups.
In 1876, those who did not accept the authority of the Patriarch of Antioch remained with Thomas Mar Athanasious and chose the name Malankara Mar Thoma Syrian Church. They removed a number practices introduced at The Synod of Diamper to the liturgy, practices and observances. In 1961, there was a split in this group with the formation of St. Thomas Evangelical Church of India.
In 1874 a section of Syro-Malabar Catholic Church from Thrissur came into communion with Patriarch of the Church of the East in Qochanis as a result of schism followed after the arrival of Bishop Rocos Mar Elias Melus sent by the Patriarch of Chaldean. They follow the East Syriac tradition and are known as Chaldean Syrian Church.
However, in 1912 due to attempts by the Antiochean Patriarch to gain temporal powers over the Malankara Church, there was another split in the West Syriac community when a section declared itself an autocephalous church and announced the re-establishment of the ancient Catholicosate of the East in India. This was not accepted by those who remained loyal to the Patriarch. The two sides were reconciled in 1958 but again differences developed in 1975. Today the West Syriac community is divided into Malankara Orthodox Syrian Church, Malankara Jacobite Syriac Orthodox Church.
In 1930 a section of the Malankara Orthodox Church under the leadership of Mar Ivanios and Mar Theophilus came into communion with the Catholic Church, retaining all of the Church's rites, Liturgy, and autonomy. They are known as Syro-Malankara Catholic Church.

Demography

On a rough reckoning, about 70% to 75% of the Christians in Kerala belong to the St. Thomas Christianity spread across different denominations, including the Malankara Orthodox Syrian Church, the Jacobite Syrian Orthodox Church, the Malankara Marthoma Syrian Church, Syro-Malankara Catholic Church, the Syro-Malabar Catholic Church, the Chaldean Syrian Church and the Malabar Independent Syrian Church. About 5.2 percent of St. Thomas Christians are within the Diocese of Madhya Kerala of the Church of South India.
India's official census data places the total Christian population in Kerala at 6.06 million in the year 2001. Accordingly, the population of St Thomas Christians in Kerala may be in the region of 4.2 to 4.5 million. Since the 1950s a sizeable population of St Thomas Christians have settled in Malabar region of Kerala following the Malabar Migration. Many work or have settled outside the State in cities like Mumbai, as well as outside India in West Asia, Europe, North America and Australia.