At stumps, captain Faiz Fazal was unbeaten on 51, while Akshay Wakhare was on seven.
Resuming on 32 for 2, Kerala kept losing wickets at regular interval in reply to Vidarbha's first-innings total of 246 with Gurbani (5/38 in 14 overs) wreaking havoc.
Overnight batsman Jalaj Saxena top-scored with 40. He along with Rohan Prem (29) stretched their overnight stand to 47 before the latter got out.
Having taken a 70-run first innings lead, Vidarbha started their second innings on a positive note with Fazal and Sanjay Ramaswamy (14) adding a 53-run opening stand.
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Thereafter Wakhare, the nightwatchman, hung around with his captain to ensure that Vidarbha did not lose any more wicket till the close of play.
Vidarbha: 246 & 77 for 1 in 30 overs (Faiz Fazal 51 batting).
Kerala 1st innings: 176 all out in 61.5 overs (Jalaj Saxena 40, Sanju Samson 32; Rajneesh Gurbani 5/38).
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