Kedarnath Bhattacharya (born 23 September 1957), better known as Kumar Sanu, is an Indian playback singer who mainly sings for Hindi and Bengali films, and is popular for rendering his voice in Bollywood movies of the 1990s and early 2000s. He was awarded the Filmfare Best Male Playback Singer Award for five consecutive years. In 2009, the Government of India awarded him the Padma Shri, India's fourth-highest civilian honour, in recognition of his achievements.Sanu notably holds the Guinness World Record for most songs recorded by a singer in 24 hours with 28.
Sanu's father, Pashupati Bhattacharya, was a vocalist and composer. The two and Sanu's elder sister lived in the Sinthee area of Calcutta (now Kolkata) near Biswanath Park. Bhattacharya trained under renowned musicians of the region, Jiban Upadhyay and Bishodeb Chattopadhyay, the former of the Badal Khan and Jamruddin gharana. Classically trained, he sang for the Dhaka radio alongside Jagan Mitra and Sudhirlal Chakrabarty. Sanu said of him, "He was a master of thumri, khayal and bhajans. Only my elder sister Jayshree Mukherjee, was trained by him. The rest of us would listen to him entranced and we learnt a lot from that."