Question: who wrote the book entitled the history of hindu chemistry
Answer: Acharya Sir Prafulla Chandra Ray also spelled Prafulla Chandra Rây CIE ( Bengali : প্রফুল্ল চন্দ্র রায় Praphulla Chandra Rāy ; 2 August 1861 -- 16 June 1944 ) was a Bengali chemist , educator and entrepreneur .