Captain R Vinay Kumar returned with an impressive nine-wicket haul in the match, including a fifer in the second innings, to guide Karnataka to a thumping 393 runs win over Rajasthan in Group B encounter of the Ranji Trophy cricket tournament, at Vizianagaram today.Vinay Kumar picked up five wickets for 54 runs in Rajasthan's second essay to help Karnataka have full six points from the game.Chasing 525 runs for a win in the second innings, Rajasthan could score only 131. Resuming at the overnight score of 118 for six, last four Rajasthan batsmen could add just 13 runs to their total.