Original sentence: Support of the OIT also stems out of specific interpretations of the Rig Veda and Iranian Avesta.The Kurgan hypothesis would not hold true if the Rig Veda were dated early than 2000 BC, a proposition which most OIT supporters advance at some point.The Out of India theory cites mainly linguistic and archaeological evidence to base its claims.The debate falls into the dating of the Rig-Veda.The main proponents of the theory include Koenraad Elst and Srikanth Talageri.The recent Hindu nationalist revival of OIT has been described by archaeologist George  as a "lunatic fringe" "devoid of scholarly value".The theory suggests that the Proto-Indo-European language group was once found in the Indian subcontinent, after which a series of migrations saw various groups leave the subcontinent and spread to the remainder of the Indo-European region
Edited sentence: Since the 1990s there has been a Hindu nationalist revival of OIT which the archaeologist George  has called a "lunatic fringe" "devoid of scholarly value"