| 1. Round | 20/11/2020 | Kerala Blasters | - | ATK Mohun Bagan FC | 0:1 | ||||
| 2. Round | 27/11/2020 | SC East Bengal | - | ATK Mohun Bagan FC | 0:2 | ||||
| 5. Round | 11/12/2020 | ATK Mohun Bagan FC | - | Hyderabad FC | 1:1 | ||||
| 6. Round | 16/12/2020 | ATK Mohun Bagan FC | - | FC Goa | 1:0 | ||||
| 8. Round | 21/12/2020 | ATK Mohun Bagan FC | - | Bengaluru FC | 1:0 | ||||
| 9. Round | 29/12/2020 | Chennaiyin FC | - | ATK Mohun Bagan FC | 0:0 |  |
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| 10. Round | 03/01/2021 | ATK Mohun Bagan FC | - | NorthEast United FC | 2:0 | |
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| 11. Round | 11/01/2021 | ATK Mohun Bagan FC | - | Mumbai City FC | 0:1 | |
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| 15. Round | 26/01/2021 | NorthEast United FC | - | ATK Mohun Bagan FC | 2:1 | |
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| 16. Round | 31/01/2021 | ATK Mohun Bagan FC | - | Kerala Blasters | 3:2 | ||||
| 17. Round | 06/02/2021 | Odisha FC | - | ATK Mohun Bagan FC | 1:4 | |
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| 19. Round | 14/02/2021 | ATK Mohun Bagan FC | - | Jamshedpur FC | 1:0 | ||||
| 20. Round | 19/02/2021 | ATK Mohun Bagan FC | - | SC East Bengal | 3:1 | ||||
| 21. Round | 22/02/2021 | Hyderabad FC | - | ATK Mohun Bagan FC | 2:2 | ||||
| 22. Round | 28/02/2021 | Mumbai City FC | - | ATK Mohun Bagan FC | 2:0 | |
India