N. Vishwanathan was born on 4th November , 1932 in Vellore and his real name is Nitin. His nickname is Bishu. In 1945, he completed his gradudation from St.Xaviers’ College. He also did his Masters in Political Science and English in 1952 and 1956 respectively. He was also a student of Cambridge University. From 1950-1995 , he used to work as a professor in St.Xaviers’ College . He has even taught in South Point School from 1955-1959. In 1958 , he tied his knots and has a son named Ashok Viswanathan. Ashok is a leading actor and director.
He made his debut in Devaki Kumar Basu’s film “Ratnadeep” in 1951.Kanchanjangha(1962) , Subhas Chandra (1966), Jibon Mrityu (1967) are some of his hit films. He has also acted in many Tamil Movies and television serials. In 1952, Information department of Government of India has sent him to London as an Indian Representative in a debate show. He has translated “Bisorjon” a masterpiece created by Rabindranath Tagore .He has traveled in America to deliver lectures on Rabindranath Tagore. He received All India Fan Association Award for a Tamil Movie.