Stadium: Court 1 Round: 27 Ground: Hardcourt outdoor
| ITF M15 New Delhi | 2021/03/28 05:00 | Singh, Dalwinder v Bharath Nishok Kumaran | 6-3,6-4 |
| ITF M15 Indore | 2021/11/11 04:00 | Ajay Malik v Singh, Dalwinder | 5-7,1-6 |
| ITF M15 Indore | 2021/11/10 04:00 | Singh, Dalwinder v Ranjeet Virali-Murugesan | 6-3,6-1 |
| ITF M15 New Delhi | 2021/03/28 10:30 | Singh, Dalwinder v R Prabodh, Suraj | 4-6,3-6 |
| ITF M15 New Delhi | 2021/03/28 05:00 | Singh, Dalwinder v Bharath Nishok Kumaran | 6-3,6-4 |
| ITF M15 Indore | 2021/03/11 04:00 | Singh, Dalwinder v Luca Castelnuovo | 4-6,3-6 |
| ITF M15 Indore | 2021/03/09 04:00 | Raghav Jaisinghani v Singh, Dalwinder | 3-6,0-6 |
| ITF M15 Lucknow | 2021/03/04 04:00 | Singh, Dalwinder v Sidharth Rawat | 6-7,5-7 |
| ITF M15 Lucknow | 2021/03/03 04:00 | Singh, Dalwinder v Kaza, Vinayak Sharma | 7-6,6-3 |
| ITF M15 Indore | 2021/11/11 04:00 | Bharath Nishok Kumaran v Karan Singh | 6-4,6-4 |
| ITF M15 Indore | 2021/11/10 05:35 | Bharath Nishok Kumaran v Singh, Karunuday | 3-6,7-6,6-2 |
| ITF M15 Indore | 2021/11/09 03:30 | Ranjeet Virali-Murugesan v Bharath Nishok Kumaran | 3-6,6-3,10-12 |
| ITF M15 Indore | 2021/11/08 09:45 | Mahadevan, Arjun v Bharath Nishok Kumaran | 2-6,1-6 |
| ITF M15 Indore | 2021/11/07 08:25 | Yadav, Udit v Bharath Nishok Kumaran | 2-6,0-6 |
| ITF - M15 Doha | 2021/10/18 15:40 | Davud Amirov v Bharath Nishok Kumaran | 3-6,7-5,11-9 |
| ITF - M15 Doha | 2021/10/11 12:30 | Bharath Nishok Kumaran v Adrian Oetzbach | 3-6,1-6 |
| ITF M15 Doha Qual | 2021/10/10 16:05 | Bharath Nishok Kumaran v Turcu, Mihnea Lorin Stefan | 6-3,6-3 |