Pakistan, electing to bat after winning the toss, were restricted to 97-6 by a steady Bangladeshi bowling attack. .
Skipper Sana Mir, Sadia Yousuf and Nida Dar claimed two wickets each.
Bangladesh were not up to the task for the revised Duckworth-Lewis target of 43 from seven overs following a heavy downpour during the break. They scored a meager 38 runs for the loss of 9 wickets to lose by 4 runs.