The Pune bowlers put up a disciplined effort to limit KKR to 155 for eight before Tripathi fashioned his team's win with
A 52-ball blinder. The visiting team got home with four balls to spare.
The pick of the Pune bowlers was Jaydev Unadkat, who ended with figures of 2 for 28 after bowling a wicket-maiden in the first over of the game.
It was a third win in a row for Pune, who have moved up to third place in the points table and closer to a play-off berth with 14 points from 11 matches.