If the forefathers of the Vedic Aryans were still in Cappadocia in the 14th century BC on their march towards India, there would be no time left for them to forget all their previous history before giving the final form to the Rigvedic hymns not later than 1000 BC.
Source, in full
B. Ghosh, in : The History and Culture of the Indian People, Vol. I: The Vedic Age edited by R.C. Majumdar, Bharatiya Vidya Bhavan Publications, Mumbai, 6th edition 1996. , quoted in S. Talageri, The Aryan Invasion Theory and Indian Nationalism (1993)