The ancient connections of Vedic Civilization that is preserved in India to that of various nations in S E Asia are well known. Imprint of Vedic Civilization from Jerusalem to Japan, from Bali to Siberia may be discerned or for that matter even in far removed wider areas.
Thus History of India requires much revision, in fact freedom from distortions and deliberate misconceptions fostered to date from colonial period.
Prof Damodar Satvalekar showed that Arabic language is derived from Sanskrit.
Add to all such findings the following noted below, the need to conduct further research into vast spread of Vedic Civilization becomes obvious. It also becomes important in many ways in view of what happens when such civilization is replaced . The places, Afghanistan, Pakistan have become havens of international terrorism rather than harbingers of exalted contributors of human civilization. Panini whose grammar is followed by Indo European languages belonged to what is to day Pakistan. Many mantras of Rg Veda were revealed to sages then in area now called Afghanistan.