Mysuru: Ranji Trophy champions Karnataka defeated Bangladesh A by four wickets in a three-day tour match here on Thursday, overhauling the victory target of 181.

Resuming at their overnight score of 188/3 with a lead of 59 runs, Bangladesh A folded up for 309 as left-arm spinner Jagadeesha Suchith sliced through the middle and lower order for a haul of six wickets.