Stadium: Court 1 Round: 27 Ground: Hardcourt outdoor
| ITF - M15 New Delhi | 2021/11/18 05:50 | Eric Vanshelboim v Nitin Kumar Sinha | 6-3,6-7,0-6 |
| ITF - M15 New Delhi | 2021/11/17 07:10 | Alexis Canter v Nitin Kumar Sinha | 6-4,2-6,6-7 |
| ITF - M15 Indore | 2021/11/11 05:50 | Nitin Kumar Sinha v S D Prajwal Dev | 3-6,6-7 |
| ITF - M15 Sharm El Sheikh | 2021/10/11 09:30 | Nitin Kumar Sinha v Alan Bojarski | 1-6,6-2,10-12 |
| ITF - M15 Sharm El Sheikh | 2021/10/07 08:00 | Petr Hajek v Nitin Kumar Sinha | 6-3,6-7,6-4 |
| ITF - M15 Sharm El Sheikh | 2021/10/06 09:35 | Nitin Kumar Sinha v Cezar Cretu | 4-6,6-1,6-2 |
| ITF - M15 Sharm El Sheikh | 2021/10/05 08:00 | Nitin Kumar Sinha v Nico Jaeger | 6-4,6-0 |
| ITF - M15 Sharm El Sheikh | 2021/10/04 08:00 | Nitin Kumar Sinha v Stephanos Schinas | 6-1,6-4 |
| ITF - M15 New Delhi | 2021/11/18 06:10 | Vishnu Vardhan v Dusty H. Boyer | 6-3,6-3 |
| ITF - M15 New Delhi | 2021/11/17 08:00 | Dalwinder Singh v Vishnu Vardhan | 2-6,4-6 |
| ITF - M15 New Delhi | 2021/11/16 07:00 | Vishnu Vardhan v Madhwin Kamath | 6-1,6-2 |
| ITF - M15 New Delhi | 2021/11/15 05:10 | Chandril Sood v Vishnu Vardhan | 1-6,1-6 |
| ITF - M15 New Delhi | 2021/11/14 08:00 | Pranash Babu v Vishnu Vardhan | 1-6,0-6 |
| ITF - M15 Indore | 2021/11/10 04:00 | Vishnu Vardhan v S D Prajwal Dev | 4-6,2-6 |
| ITF - M15 Indore | 2021/11/09 03:30 | Vishnu Vardhan v Fardeen Qamar | 6-2,6-4 |
| ITF - M15 Indore | 2021/11/08 07:30 | Boopathy Sakthivel v Vishnu Vardhan | 5-7,2-6 |