Historical Geography of Ancient India is an authoritative book on the subject. The author has gone deep into original Sanskrit (Vedic and Classical), Pali, Prakrit, Sinhalese, Burmese, Tibetan and Chinese works to trace out ancient names of geographical features of India. In addition, he was availed of the archaeological, numismatical and epigraphical material brought to light in the recent past. Modern scholar by publications have also been consulted. For the convenience of users, the subject is treated in five chapters, each dealing exhaustively with a specific geographic zone. An erudite introduction discusses the source material, different names of India with their precise connotations, and physical features of India.