Shadab Khan scored a 41-ball 64 and picked up Chris Gayle and Imrul Kayes' wicket. But his efforts went in vain.
Mashrafe Mortaza had 14 stitches on his left-hand after getting injured in the last game.
In their previous meeting the Platoon beat the Tigers by 12 runs.
The Platoon's batting depth couldn't save the day for their team.
The Rangers will be playing for pride in their last round-robin match.
The Rangers were shot out for 84 in their must-win game at the Sher-e-Bangla National Stadium.
It's a must-win affair for Shane Watson's Rangers.
Asif Ali's 13-ball 39 turned out to be a decisive factor in the match.
Hashim Amla has joined the Tigers ahead of the contest.
Wahab finished with a spell of 3.4-1-8-5, including a triple-wicket maiden in his first over.