Nironjon Roy was born on 12th March , 1932 in Benaras. He completed his matriculation from Kalidhan Institution in 1950 and joined Ashutosh College. But he got involved in politics and didn’t appear for examination. He was involved in active left politics . On 23rd August 1971, he got married and has a son.
Director Rajen Tarafdar has already casted Prabir Kumar in his film “Ganga”. But after his few days of shooting , he didn’t like Prabir Kumar’s acting in the film and started looking for a newcomer for the lead role of Bilas. At that time, Nironjon was a political activist who was hiding for shelter. Some how Rajen got hold of Nironjon and asked him to read the novel and later Nironjon made his debut in the film in 1957. He loved the novel “ganga” so much that he threw an open challenge infront of Director Rajen Tarafdar and said that if he does acting , no one can excel his acting skills in the film. Chopper (1987) , Nagpash (1987) , Megha Dhaka Tara (1960) are some of his hit films. In 1955 , he participated in Youth Festival and traveled abroad widely.