Mohammad Shami celebrates after dismissing Rajat Bhatia for 17 runs.
Quinton de Kock smashed 42 off 33 balls to take Delhi Daredevils to 152/5 against Rajasthan Royals.
Duminy scored 39 off 31 balls before being dismissed by Kane Richardson.
Captain Kevin Pietersen scored 14 off balls.
Pravin Tambe continued his superb show and claimed 2 for 25 in his four-over spell.
Karun Nair scored a magnificent 73 off 50 as Rajasthan Royals defeated Delhi Daredevils by seven wickets with nine balls to spare.