| Harsh was born into a middle-class family. |
| He developed an interest in cricket after seeing children practice while on a wrong turn to school. |
| His father worked in the CISF but left his job to support Harsh's training. |
| He trained at local clubs before achieving recognition. |
| He was the highest wicket-taker in the 2019-2020 Under-19 Cooch Behar Trophy season. |
| In June 2022, he scored 116 runs in 107 balls for MRC-A in the TNCA Division Finals. |
| He signed a contract with SG Cricket in July 2022. |
| In June 2023, he attended the Under-23 NCA Emerging Camp in Pondicherry. |
| He gained fame in the 2024-2025 Ranji Trophy season as the highest wicket-taker, leading Vidarbha to victory, and broke a long-standing record by taking 69 wickets. |
| He also scored 476 runs, earning the title of Man of the Tournament. |
| Despite going unsold in the 2023 and 2024 IPL auctions, he was acquired by SunRisers Hyderabad in 2025 as a replacement for an injured player. |
| He is a dog lover and has a pet dog. |
