Wicket-keeper Manvinder Bisla missed two stumping chances and then Sunil Narine missed Ahmed Shehzad's catch chance, allowing the Lions opener score 59.
"I do not want to be too critical about the fielding. We have won 11 in a row which is a great achievement," Gambhir, who guided the side home with his 60-run knock. Said.
Gambhir said it was imperative for him and Robin Uthappa to provide a good start in a chase of 152.
Sunil Narine, who took three wickets and gave away just nine runs in his four overs, was declared Man of the Match.
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Asked about his consistent success, the Caribbean spinner said, "Mainly it is trying to keep down the run rate in the Powerplay and hopefully pick up a wicket or two. "
"He is young and has a lot to learn."
Lions skipper Mohammed Hafeez said they had a defendable total on the board but blamed it on fielders.
"We got the target we wanted to. 150 on this pitch with the way the ball was turning. Fielding was not up to the mark. We did not take some chances. Still it was a good show, youngsters are learning every game, we have to give them confidence, they will do well. Shehzad was magnificent. Narine bowled well," he said.