Arch-rivals Karnataka and Mumbai were involved in a close fight for first innings honours in their Group A Ranji Trophy game here yesterday. Mumbai did well to restrict the hosts to 400 all out, built mainly around rookie Krishnamurthy Siddharth's anchoring 161 after Karnataka resumed at their overnight score of 263 for 4.

Shivam Dube ended up with a brilliant seven-wicket haul. "I am delighted with my performance. I bowled in the right areas and the pitch demanded patience. I relentlessly bowled in areas where I could get a wicket. I am happy that it worked well," he told mid-day.