Shreyas Iyer too did not last long at the crease giving away easy catch to Nitish Rana at slip of Andre Russel's bowling. And Shivam Mavi bowled the third over, clean bowled Gambhir (8).
Rishabh Pant and Glen Maxwell then put on 62 run stand between them.
Chasing the target of 201, Delhi Daredevils crumbled down to 129 runs in 14.2 overs.
WICKET! Maxwell's entertaining knock comes to an end.
From 24 for three, Pant and Maxwell led DDs recovery act in a fifty-plus run partnership in quick time before Yadav gave the breakthrough, removing the Delhi wicketkeeper batsmen.
WICKET! Tom Curran gets the 5th wicket for KKR, Rahul Tewatia dismissed for just 1 run.
WICKET! Oh Oh tats really unlucky for Rishabh Pant.
Until Andre Russell walked out to bat, Delhi appeared to be in control of the proceedings and were hopeful of restricting Kolkata to a score of 170-175.
The left Hander hit sixes and fours in his explosive innings. While Man of the Match Rana took 35 balls to reach his score, slamming five fours and four sixes in the process, Russell reached his in just 12 balls, at a strike rate of 341.66. Initially, it seemed he had made the right decision as Trent Boult bowled a maiden in the very first over. Robin Uthappa and Chris Lynn then went after bowlers especially Shahbaz Nadeem, who was taking the beating from Uthappa.
Syrians rally in Damascus in support of Assad's military
Here is the information the Western countries say they have about the suspected Syrian poison gas assault on Douma. Mr Putin warned about potential "chaos" in a phone conversation with Iranian counterpart Hassan Rouhani .
Not only that, Uthappa constructed a 55-run partnership with Lynn.
Narine took three wickets for 18 runs in three overs, while Yadav finished with figures of three for 32 in 3.2 overs. The player of the match goes to Nitish Rana. They lost nearly five wickets. But in the next ball, when he tried to go for another six, he hit it straight to Robin Uthappa instead. Lynn looked scratchy and was eventually out for a 29-ball 31.
Despite being a little expensive, Trent Boult has picked up 4 wickets in 3 games. The result meant Daredevils skipper Gautam Gambhir's return to Kolkata ended on a sour note. And Kolkata Knight Riders won by 71 runs.
Karthik-led KKR are desperately looking to get their campaign back on track after After back-to-back defeats, while Delhi will hoping to carry their winning momentum from the Mumbai game. Ultimately DD's innings folded up for 129 earning KKR a handsome win.
KKR will be mlooking to bring back Sunil Narine at top of the order after the move to bring him down the order in the last game backfired.
The big-hitting Russell smashed six sixes, Mohammed Shami in particular coming in for some treatment while Jason Roy was left to rue putting down a hard chance to remove the dangerman when he had only seven to his name.
India's Under-19 World Cup winning pacer Shivam Mavi got his maiden IPL wicket in Gambhir in his first over as the former KKR skipper played on.