Kukuraja was a mahasiddha within the lineages of Esoteric Buddhism and he was contemporaneous with Indrabhuti of Sahor in Oddiyana and Kambalapada. Some sources hold that it was Kukuraja who prophesied the birth of Garab Dorje, the founder of the human lineage of the Nyingmapa Dzogchen Tantra teachings though the chronology is problematic. The tradition holds that there may be multiple Kukaraja's which are conflated or the different Kukkaraja according to Nyingma tradition may be understood as a lineage of mindstream emanations.
Instruction
According to Nyingma tradition, King Ja taught himself intuitively from "the Book" of the Tantric Way of Secret Mantra that magically fell from the sky along with other sacred objects and relics "upon the roof of King Ja" according to Dudjom, et al. took place on the Tibetan calendar year of the Earth Monkey, which Dudjom et al. identify as 853 BC. Kukuraja received instruction drawn from "the Book" on what may be understood as the Outer Tantras from King Ja, then King Ja received instruction on what may be understood as the Inner Tantras from Kukuraja as Dudjom, et al. of the principally Nyingma view relates:
"Then King Ja taught the book to master Uparaja, who was renowned as a great scholar throughout the land of Sahor, but he could not understand their symbolic conventions and meaning. The king then taught them to the master Kukkuraja. He intuitively understood the chapter on the "Vision of Vajrasattva", from the Tantra of the Magical Net of Vajrasattva , and practiced it, whereupon Vajrasattva revealed himself and predicted that the Lord of Secrets would reveal the meanings of this tantra thereafter. When he had practised more, the Lord of Secrets actually appeared and granted him the complete empowerment of the authentic teaching and of all vehicles. Then he told him to request the verbal teaching from the Licchavi Vimalakirti. It is said that, following the transmitted precepts of the Lord of Secrets, master Kukkuraja divided into the Eighteen Great Tantrapitaka and taught them to King Ja."
Interpreter
Kukuraja interpreted Tantras for King Indrabhuti. Indrabhuti is held in some sources to be the father of Padmasambhava.
Nomenclature, orthography and etymology
Kukuraja, Kukkuraja, Kukuradza, Kukkuradza and many other permutations.
Indonesian or Malay Mantranaya
There is a Dancing Ganesha at Candi Sukuh that holds a small dog, a marked Buddhadharma motif of the Hindu deity which holds iconic salience with the narrative and motifs of the "Dog King", Kukuraja. This is important for identifying the date of the tantric lineage that disseminated to the Indonesian archipelago, refer: Vajrayana Buddhism in Southeast Asia. Candi Sukuh is a fifteenth-century Javanese-Hindu-Buddhist temple that demonstrates strong tantric influence. Candi Sukuh is located on the western slope of Mount Lawuon the border between Central and East Java provinces. The monument was built around 1437, as written as a chronogram date on the western gate, meaning that the area was under the rule of the Majapahit Kingdom during its end. The distinctive Dancing Ganesha relief in Candi Sukuh has a similarity with the Tantric ritual found in the history of Buddhism in Tibet written by Taranatha. The Tantric ritual is associated with several figures, one of whom is described as the "King of Dogs", the mahasiddha who taught his disciples by day, and by night performed Ganacakra in a burial ground or charnel ground. Importantly, Ganesha also appears in Buddhism, not only in the form of the Buddhist god, but also portrayed as a Hindu demon form also called. Ganesha's image may be found on Buddhist sculptures of the late Gupta period. As the Buddhist god, Ganesha is often shown dancing, a form called Nṛtta Ganapati that was popular in North India and adopted in Nepal and then into Tibet. It is this Dancing Ganesha form which is evident in Candi Sukuh. For more information on different permutations of Ganesha beyond 'Hinduism' proper, refer Ganesha in world religions.
