Samson went on to a 100 too, off 87 balls, with eight fours and four sixes. Samson fell straight after, caught at cover off a leading edge in the 45th over, the score on 286.
In reply, it was a fighting 89 balls 102 not out from Ghulam that helped Pakistan reach 274 for nine.
Chasing a massive target, Pakistan faltered from the very beginning, losing Mohammad Umair (17), Imam-ul-Haq (18), Hasan Raza (1) and Saifullah Khan (3) cheaply, reeling at 88 for four.
But opener Sami Aslam (87) played a sensible knock even as wickets kept tumbling at the other end. Leading from the front, skipper Aslam finally found an able support in Ghulam and the two put on a solid 93-run stand together for the fifth wicket to keep Pakistan's chances alive.
