| 1. Sunil's parents originally hail from Nepal and later relocated to India. |
| 2. His father, KB Chhetri, retired as an officer from the EME Corps of the Indian Army. |
| 3. Sunil's mother, Sushila Chhetri, played for the Nepal women's national team alongside her twin sister. |
| 4. During his childhood, Sunil's family faced financial challenges that hindered his pursuits. |
| 5. In 2008, Sunil was close to joining European clubs like Leeds United and Estoril Praia. |
| 6. Sunil underwent a trial at Coventry City in England in January 2009, but the manager decided not to pursue his signing. |
| 7. News broke in August 2009 that Sunil had signed with Queens Park Rangers, but a work permit issue prevented him from playing. |
| 8. He captained the Indian national team from 2011 to 2016. |
| 9. Sunil Chhetri has been honored with the Arjuna Award by the Indian President. |
| 10. Sunil and Sonam, daughter of former Indian player Subroto Bhattacharya, have been in a long-term relationship and are set to wed in 2017. |
