About Hemant Kumar
Hemanta Mukhopadhyay, known professionally as Hemanta Mukherjee and Hemant Kumar, was an Indian music director and a playback singer who primarily sang in Bengali and Hindi, along with several other Indian languages, including Marathi, Gujarati, Odia, Assamese, Tamil, Punjabi, Bhojpuri, Konkani, Sanskrit and Urdu. He was an artist in Bengali and Hindi film music, Rabindra Sangeet, and various other genres. He was the recipient of two National Awards for Best Male Playback Singer and was popularly known as the "Voice of God". Hemanta established himself as a prominent exponent of Rabindra Sangeet with his first recorded piece in the genre appearing in the Bengali film Priya Bandhabi (1944).
Biography source: Wikipedia. The profile adds birthday-specific historical context from the Celebs Birthday Today editorial database.