Vidarbha reduced Mumbai to 83-3 in their second innings here at stumps on Day Four on Thursday and the defending champions now need a further 323 to win the semi-final match on the fifth and final day here.

Yash Rathod’s 151 and a dogged half-century from skipper Akshay Wadkar (52) took Vidarbha to 292 all out after resuming the day at 147-4.