In Pictures: 5 highest run-getters in IPL 2017
Rohit Sharma-led Mumbai Indians clinched the IPL trophy for a third time.
Mumbai Indians had lost all the three matches against Steve Smith's side in the league stages.
Tripathi's story started with going for the trials held by IPL franchise Rising Pune Supergiant (RPS) at the DY Patil Stadium in Mumbai.
Mumbai leg-spinner Karn Sharma took four wickets to bowl out KKR for a paltry 107 in 18.5 overs.
KKR were routed by Sunrisers Hyderabad by 48 runs in their last IPL match.
Nair has been struggling with his batting and he made 39 from 20 balls on Tuesday.
"I think we gave a lot of runs in the first six overs."
On Tuesday, Sunrisers failed to defend their mammoth 185/3 against a collective effort from the young Delhi boys.
Daredevils batsmen fired in unison as they chased down the target of 186 with five balls to spare.