They have so far gained a lead of 48 runs with five wickets in hand during the first innings against Bangladesh who were 338 all out on second day.
Pakistan resumed their first innings on 292-3 with veteran batsman Younis Khan (48) and skipper Misbah-ul-Haq (26) at the crease.
However, Younis could not get his fifty and was out, after adding just one run, off the second ball of the second over of the day. He was caught behind by captain Mushfiqur Rahim off Elias Sunny for 49.
Younis, who smashed an unbeaten double-century in the last Test, hit four boundaries in his 122-ball knock.
Then, Misbah joined by Asad Shafiq, succeeding not only in leveling the Bangladesh first innings total but also getting his 14th Test half-century.
Both added 66 runs for the fifth wicket stand before Misbah was caught by Mahmudullah off Shakib Al Hasan for 70.
Misbah played some attractive shots in his 123-ball knock, driving paceman Nazmul Hossain through the covers and then straight for two successive fours early in the morning.
He, however, was lucky to survive soon after completing his half-century as Robiul Islam dropped an easy catch at mid-on off left-arm spinner Shakib Al Hasan.
Misbah continued to play strokes, twice reverse-sweeping left-arm spinner Elias Sunny for fours before he was caught by Mohammad Mahmudullah in the slips while attempting to sweep Shakib.
Shafiq, who scored a century in the opening Test in Chittagong, began impressively, cutting and flicking fast bowler Shahadat Hossain for two boundaries in an over.
Sunny had a chance to take another wicket but Mahmudullah dropped Shafiq on 36 a few overs before the lunch break
At lunch, Asad was batting on 42 along with Adnan Akmal (seven not out).
