The Tata Steel Chess India has 14 players. 6 of them are constant for both Rapid and Blitz and two batches of four players will play the Rapid and Blitz respectively
Rapid line-up
The participants of the rapid tournament (25+10) to held from 17th to 19th of November
| S.No | Name | Rapid Rating | Classical rating |
| 1 | Levon Aronian | 2761 | 2782 |
| 2 | Le Quang Liem | 2715 | 2709 |
| 3 | Samuel Shankland | 2647 | 2708 |
| 4 | Vidit Gujrathi | 2639 | 2727 |
| 5 | B. Adhiban | 2626 | 2672 |
| 6 | Parham Maghsoodloo | 2516 | 2706 |
| 7 | Karthikeyan Murali | 2388 | 2630 |
| 8 | Arjun Erigaisi | 2323 | 2627 |
| 9 | R. Vaishali | 2210 | 2405 |
| 10 | Praggnanandhaa | 1821 | 2610 |
Blitz line-up
The blitz line-up (3+2) for Tata Steel Chess India Blitz 2021
| S.No | Name | Blitz Rating | Classical rating |
| 1 | Le Quang Liem | 2774 | 2709 |
| 2 | Levon Aronian | 2767 | 2782 |
| 3 | Vidit Gujrathi | 2739 | 2727 |
| 4 | Nihal Sarin | 2667 | 2650 |
| 5 | Samuel Shankland | 2660 | 2708 |
| 6 | B. Adhiban | 2629 | 2672 |
| 7 | Parham Maghsoodloo | 2601 | 2706 |
| 8 | Raunak Sadhwani | 2517 | 2609 |
| 9 | Harika | 2422 | 2511 |
| 10 | Gukesh | 2376 | 2621 |
Schedule:
17th to 19th November will be the Rapid event and 20th, 21st November will be the Blitz.
17th November - Rounds 1 to 3 of Rapid
18th November - Rounds 4 to 6 of Rapid
19th November - Rounds 7 to 9 of Rapid
20th November - Rounds 1 to 9 of Blitz
21st November - Rounds 10 to 18 of Blitz
Each day the games start at 2 p.m.
Time control:
The time control in rapid is 25 minutes + 10 seconds increment and for the Blitz it is 3 minutes + 2 seconds increment