Partha was born to Himangshu Kumar Bishwash and Shusrika Bishwash in Kalachadpara of Pabna district which was then part of East Pakistan. Born as Premanshu Kumar Biswas, Partha was later adopted by Ustad Barin Mazumder and Ila Majumder. After receiving primary education at Jubilee School, he was sent to Chandannagar, India and was admitted in Dr. Shitol Prasad Ghosh Ideal School. There he met with Jogesh Dutta, an Indian mime artist and became interested in mime. Between 1966 and 1972 he studied at the Jogesh Dutta Mime Academy and received basic knowledge about the art. Meanwhile, Bangladesh became independent after a nine-month war and Partha moved back to his country. In 1972 he was admitted to Government Music College in Dhaka before graduating in 1976.