Abhimanyu Easwaran’s unbeaten 151 took Rest of India (RoI) to 289 for 4 at the end of day three of the Irani Cup in Lucknow. But with Mumbai posting 537 in their first innings, RoI still have a mountain to climb.In the morning, Mumbai could add only one to their overnight 536 for 9. In the third over of the day, Mukesh Kumar knocked out Mohammad Juned Khan’s off stump for his fifth wicket of the innings, leaving Sarfaraz Khan unbeaten on 222.RoI had a somewhat nervy start but with Shardul Thakur unwell, Mumbai were forced to bring spin as early as in the sixth over. Juned provided the breakthrough by having RoI captain Ruturaj Gaikwad caught at second slip. RoI had only 40 runs on the board at that point but Easwaran and Sai Sudharsan stabilised them with an 87-run stand for the second wicket.Sudharsan, though, failed to convert his start and was lbw for 32 off Tanush Kotian after lunch. Devdutt Padikkal didn’t last long either and was caught behind for 16 off the bowling of Mohit Avasthi. It was a similar story for Ishan Kishan. He scored 38 before edging Avasthi to the wicketkeeper.By contrast, Easwaran was looking comfortable. He eased to his hundred off just 117 balls, even though only 38 runs had come in boundaries. He slowed down a bit after his hundred but Dhruv Jurel kept the scoreboard moving with an unbeaten 30 off 41 balls.In the penultimate over of the day, Easwaran brought up his 150, which was followed by Jurel hitting Kotian for a four and a six off successive balls. By stumps, the two had added 61 in an unbroken stand for the fifth wicket.