Yuvraj Singh hit the world's longest six in ipl 2009.
Albie Morkel hit 125 m six longest in the ipl for CSK
Kieron Pollard (Mumbai Indians) has hit the highest six in IPL.
125 m in ipl 2009 against deccan chargers
124m by Albie Morkel
Its Dhoni-108 m
Albie Morkel holds the record of the longest six (approx. 126 mtr.) of the IPL.