Tahir took 2/23 to finish with 26 wickets, one more than Kagiso Rabada's tally.
Dhawan finished at 3rd, Pant 7th, and Iyer 9th, while Tahir rose to 2nd, Chahar 4th, and Harbhajan 10th.
Rashid Khan finished his tournament with 17 wickets after Sunrisers Hyderabad were eliminated.
Tahir now has 23 wickets, 2 behind Bumrah, while de Kock breached the 500-run mark.
Of active batsmen, de Kock is the leading run scorers, but he is 200 runs behind Warner. Tahir, on the other hand, needs 5 wickets to win the Purple Cap.
Russell is now 12 short of Rahul's tally of 522, while Gayle has 462. On the other hand, Shami has 17 wickets and Ashwin 15.
Quinton de Kock jumped five spots, while Khaleel Ahmed entered top ten.
Chennai Super Kings’ 80-run victory over Delhi Capitals had ramifications on the runs and wickets charts.
Gopal moved to second spot and Chahal to joint third in the wickets charts, while Kohli and de Villiers made minor additions to their runs tally.
With 692 runs, Warner is now 172 ahead of 2nd-placed Rahul.