Explanation:

Birendra Kumar Bhattacharya was an Indian writer. He was one of the pioneers of modern Assamese literature. He was the first ever Assamese writer to receive the Jnanpith Award, which was awarded to him in the year 1979 for his novel Mrityunjay(Immortal), followed by Indira Goswami in 2001. He was also a recipient of Sahitya Akademi Award in Assamese in 1961 for his Assamese novel Iyaruingam, which is considered a masterpiece of Indian literature. In 2005, a translation of the work published by Katha Books with the title Love in the Time of Insurgency was released. Another famous novel written by Bhattacharya is Aai (Mother). He was the President of Asam Sahitya Sabha (Assam Literary Society) during 1983-1985.