| 1. Sandeep Singh is an individual of Indian Punjabi-Sikh descent and is associated with the radical Sikh group known as the Waris Panjab De group. |
| 2. He operates a clothing store located near Gopal mandir on Majitha road in the city of Amritsar, Punjab. |
| 3. The shooting incident involving Sandeep Singh targeting the Punjab-based Shiv Sena leader Sudhir Suri occurred on November 4, 2022. |
| 4. In 2016, Sandeep was involved in a hit-and-run incident with Sikh activist Joga Singh Khalistani, who was later struck by an Innova car and died. A case was registered against Sandeep and six others, but he was never taken into custody. |
| 5. Sandeep Singh shot Sudhir Suri five times with a .32-bore licensed weapon during a confrontation outside Gopal Mandir in Amritsar. |
| 6. He was arrested and lodged in Punjab jail following the November 2022 shooting incident. |
| 7. In May 2024, Sandeep Singh announced his candidacy for the Lok Sabha elections from the Amritsar seat while in judicial custody. |
| 8. In November 2025, Sandeep Singh was attacked by a group of inmates inside Patiala Central Jail and was subsequently relocated to a safer barrack. |
| 9. In May 2026, Sandeep Singh allegedly assaulted three former Punjab Police officers convicted in a 1993 fake encounter case inside Patiala Central Jail. |
| 10. His brother Mandeep Singh was picked as the candidate of the Akali Dal (Waris Punjab De) for the Tarn Taran Assembly bypoll in 2025. |
| 11. He was facing trial in the Sudhir Suri murder case, and in May 2026 a Patiala court also framed charges against him in the September 2025 Patiala Central Jail attack case. |