| Sumit Kumar, an Indian singer, is the youngest son of the iconic singer and actor Kishore Kumar. |
| His mother, Leena Chandavarkar, is a former Bollywood actress known for her roles in films like Dhal Gya Din Ho Gyi Sham and Man Ka Meet. |
| Born to Kishore Kumar's fourth wife, Sumit Kumar is the nephew of renowned Bollywood figures Ashok Kumar and Anoop Kumar. |
| He practiced music with his step-brother, Amit Kumar, a well-known singer in the industry. |
| Sunidhi Chauhan, another notable singer, shared a strong bond of friendship with Sumit as his school classmate. |
| At just five years old, Sumit Kumar faced the loss of his father, and was raised by his step-brother, Amit Kumar. |
| Described as an introvert, Sumit spent his teenage years under the care of his mother. |
| Starting at the age of 9, he began singing, collaborating with Amit on the track 'Hum Hain Do Kishore'. |
| His playback singing career commenced in 2002, when he debuted with the film 'Mudda - The Issue' at the age of 20. |
| In 2004, he contributed his vocals to the song 'Bandhane Lagi' from the movie 'Naach' (2004). |
| Together with his brother, Amit Kumar, Sumit conducted a tribute concert named 'Do Kishore' at various venues in 2011. |
| In 2020, Sumit launched Kumar Brothers Music, an online platform dedicated to offering their own songs and Kishore Kumar's unreleased music. |
| Kumar Brothers Music aims to promote Bhadra Sangeet, an overlooked genre of Indian classical music. |
| During his childhood, Sumit accompanied his father and brother, learning to play the casio during those times. |
