Put into bat, Mumbai slumped to a precarious 23 for three in the fifth over with opener Lendl Simmons (7), Jalaj Saxena (0) and Ambati Rayudu (3) being dismissed cheaply in the space of seven balls and they never recovered from there.
In fact, Simmons and Saxena were out in consecutive deliveries off pacer Aizaz Cheema in the fourth over as Mumbai lost the momentum early on.
West Indian big hitter Kieron Pollard, who was named captain after Rohit Sharma suffered an injury, could not contribute much and he departed soon after scoring just six.
Mumbai 100 came only in the 17th over and Tare fell the next over while trying to force the pace of the innings. He faced 36 balls and hit two fours and as many sixes.
Harbhajan hit a six in the penultimate over but was run out in the first ball of the final over
For the Pakistan side, Aizaz Cheema and Wahab Riaz grabbed two wickets apiece while Asif Raza and Imran Ali chipped in with a wicket each.