Such was Saurashtra's dominance that they wrapped up the five-day match inside three days with Assam batsmen falling flat in front of the opposition bowling unit led by Unadkat, who returned with impressive match figures of 11 for 112 runs.
Unadkat, who picked up six wickets in Assam's first innings, followed it up with yet another stellar show scalping five more victims in the second essay by giving away just 45 runs.
Centurion Cheteshwar Pujara (126) managed to add just 10 runs to his overnight score while Chirag Jani made 43 and Deepak Punia was unbeaten on 42.
For Assam, pace duo of Krishna Das (3/80) and Arup Das (3/105) shared six wickets between them.
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But it was all Unadkat and his pacer partner Hardik Rathod's show as the hunted in pair to bundle out a sorry-looking Assam for just 139 runs in their second essay, thereby setting up an easy target of 21 runs for Saurashtra to seal the affair which they did woth aplomb.
Brief Scores:
Assam: 234 & 139 all out 39.1 overs (Jamaluddin Syed Mohammad 39; Jaydev Unadkat 5/45).
Saurashtra: 254 & 24 for no loss in 3.1 overs.