| Harjeet Singh's smoking habit is unknown. |
| Harjeet Singh's alcohol consumption is not known. |
| He was born in Punjab to a truck driver. |
| In 2004, at the age of eleven, he started a career in Hockey. |
| Initially, he trained at the Gopal Hockey Academy in Kurali, Punjab. |
| Due to financial constraints, he almost quit the sport. |
| Harjeet joined the prestigious Surjit Hockey Academy in Jalandhar in 2008. |
| He credits his success to Patwari Sohan Singh Lal and Coach Amrutpal Singh. |
| The Delhi Waveriders selected Harjeet to play in the Hockey India League in 2015. |
| He won the 'Jugraj Singh Upcoming Player of the Year' award for his outstanding performance. |
| In 2015, he gained experience at the FIH Champions Trophy in London. |
| Harjeet participated in the Sultan Azlan Shah Tournament in 2016. |
| He was appointed captain of the Indian Men’s Junior Hockey squad. |
| Under his leadership, the team won the Gold medal at the 2016 Men’s Hockey Junior World Cup. |
| In 2018, a biopic named "Harjeeta" was announced, with Ammy Virk portraying Harjeet Singh. |
