A five-wicket haul by pacer KM Asif, who is having his best domestic season, helped underdogs Kerala earn a shock 15-run victory against defending champions Mumbai in a Syed Mushtaq Ali Trophy Group A match here on Thursday.

The star-studded Mumbai side, led by India pacer Shardul Thakur and having the likes of national T20 skipper Suryakumar Yadav and Shivam Dube in their ranks, crumbled to 163 all out in 19.4 overs while chasing 179.