It took place from 11 March to 4 April 2021, with teams competing in round-robin divisions before a knockout stage.
Railways won the tournament, their 12th title, beating Jharkhand in the final.
[4] The winner of each Elite Group progressed to the quarter-finals, along with the best two second-placed teams.
The final quarter-final spot was filled by the winner of a play-off between the third-best second-place side and the winner of the Plate Group.
If points in the final table were equal, teams were separated by first most wins, then by head-to-head record, then Net Run Rate.