Prabir was born on 11th July, 1935 in Mymensingha (Bangladesh). His real name is Subrata cHowdhury . Director Saroj Mukhopadhay gave him his screen name “Prabir Kumar”He passed his matriculation from South Suburban School and ISC from Vidyasagar College. He was a very good football player.
While he went to watch shooting, he got a small role in Director Satyen Basu’s “Barjatri” in 1951. But he acted in the lead role in “Prosno”. Asampto(1956), Antarikho (1957), Chupi Chupi Ase(1960) are some of his mentionworthy films. He had unusual resemblance with Uttam Kumar. So he worked as his dummy after Uttam’s death.