| Kumar Sanu does not smoke. |
| It is not known if Kumar Sanu drinks alcohol. |
| Sanu played a musical instrument in his early days. |
| He struggled in the music industry for 7 years before getting an opportunity in 1987 from Jagjit Singh to sing in the Hindi film Aandhiyan. |
| Kumar Sanu holds the Guinness World Record for recording 28 songs in a day. |
| While some of his family members received classical music training, he did not. |
| Kumar Sanu had not collaborated with A.R. Rahman due to his preferences for not working on music recordings at night. |
| His father was a music composer for local plays. |
| As a child, he was known as Chhaanu, a name he later modified to Sanu. |
| Kumar Sanu is affiliated with the Bharatiya Janata Party (BJP). |
| Initially, his name was misspelled as Shanu in Bollywood before being corrected. |
| He named his eldest son Jico after his admiration for the Brazilian football team. |
| In 2023, Kumar Sanu served as a judge on the singing reality show 'Indian Idol' aired on Sony Entertainment Television (SET). He debunked rumors of the show being scripted, emphasizing its authenticity and reality-based format during an interview. |
