The openers, starting at an overnight four for no loss, batted for better part of the day to guide Vidarbha to 242 for three at stumps with the team needing another 60 runs for the first innings lead.
Saurashtra had scored 301 on the opening day at the back of Sheldon Jackson's century.
Both Ramaswamy and Fazal were at the crease together for 59.3 overs and both played with patience, consuming 190 and 204 balls respectively.
Brief scores: Saurashtra 301. Vidarbha 242/3 in 91 overs (Ramaswamy 77, Fazal 94).
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