Chasing a meagre total for victory, Himachal raced to 103 for the loss of four wickets in 25 overs at the Eden Gardens.
Karaparambil Monish picked up 3/31 for Kerala.
For Himachal, Gurvinder Singh was the best bowler, returning impressive figures of 5/37 in 15.5 overs, while Mayank Dagar and Rishi Dhawan had three and two wickets respectively.
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