| 1. Kushal Paul's smoking habits are unknown. |
| 2. Kushal Paul's alcohol consumption is unknown. |
| 3. He began learning Music at the age of 3, and his mother encouraged his singing aspirations. |
| 4. He emerged as the champion of Zee Bangla's "Sa Re Ga Ma Pa" in 2012-2013. |
| 5. Kushal clinched victory in the singing competition "Sa Re Ga Ma Pa" in 2016. |
| 6. His younger sister, Isis, is a singer who participated in Zee TV's "Sa Re Ga Ma Pa Li'l Champs" in 2013, reaching the top 7. |
| 7. He was part of singer-composer Pritam Chakraborty's team during the 2016 Sa Re Ga Ma Pa competition. |
| 8. The first runner-up in the 2016 Sa Re Ga Ma Pa finale was Sachin Kumar, with other finalists including Jugpreet Bajwa, Rupali Jagga, and Jyotica Tangri. |