The crater is yet to be fully investigated in a systematic way. In 1869, crater was first visited by geologist Frederick Richard Mallet of Geological Survey of India. Rai BahadurKishan Singh Rawat, a colonial era Indian explorer and cartographer, was first to map it on a small scale. Other studies include by those of Arthur Lennox Coulson, Sharma and Singh and Jaganathan and Rao, Crowford, Rakshit, Ramaswamy, Vimal Kumar Reddy etc. A rootless mass of sheared sandstone found near Bandewara temple in the crater indicates a fall back material. Crawford, after discovering shatter coned colluvium in the middle of the crater, was first to suggest that this was an impact crater. Auden suggested that the crater in upper Vindhya Range might be kimberliteintrusion similar to Majhgawan kimberlite intrusion. In 1960, Geological Society of London recognised it as an impact crater. In addition, the Ramgarh crater is already among the confirmed/proven list of impact craters based on three-step confidence level criteria of Anna Mikheeva of Russian Academy of Sciences, applied to the impact sites that have appeared several times in the literature and/or have been endorsed by the Impact Field Studies Group and/or Expert Database on Earth Impact Structures. The Earth Impact Database, at the University of New Brunswick in Canada, is used as the most authoritative for confirming the impact craters. The confirmation of Ramgrah being impact crater from EID is pending. In January 2018 Professor Vinod Agrawal and Geologists Pushpendra Singh Ranawat, members of team composed of GSI, INTACH and Mohanlal Sukhadia University, which visited the crater to collect samples for the scientific study of the genesis of the crater, said the several types of evidence at crater meets the established criteria for the meteorite impact and that is a very rare site in India of multi-faceted significance including geological heritage. Team stated that the ample research on the site has been conducted to gather geochemical and other evidence published in peer reviewed journals, hence once the evidence is accepted by the national and global approving entities in India and Canada respectively the crater will be likely recognised as 191th impact crater in the world and 3rd in India by 2020 by the Earth Impact Database.
Geology
Topography
Located on a 240m MSL high plateau, the diameter Ramgarh ring crater rise further 150 to 200 m above the surrounding plateau. Located in Vindhya Range it is part of Bhander Group of Vindhyan Supergroup it has a raised rim and a circular depression in its centre forming a plain with average elevation of 260 m above sea level.
Hydrology
Ramgarh rivulet flows from the south-west chasm of the crater and it becomes a tributary of Parvati river 4 km in the west. There are several other gullies and rills formed with radial and centripetal drainage. Radial streams flow into the Parbati River, a tributary of Chambal River,
Mineralogy
Glass resembling rock samples were collected and investigated. These spherules contain very high percentage of iron, along with very high ratios of nickel and cobalt. This high ratios suggests a meteorite strike or extraterrestrial rocks.
