White smashed a strokeful 78 off just 46 balls and together with JP Duminy (26 not out) added crucial 75 runs for the fifth wicket to power Deccan to 177 for four after electing to bat.
And then Deccan bowlers rose to the occasion for the first time in IPL season five as Pune lost wickets at regular intervals to be restricted to 159 for seven at the Subrata Roy Sahara Stadium.
Debutant Ashish Reddy (2/32) and Rusty Theron (2/37) starred with the ball for Deccan, picking up two wickets apiece.
The victory is Deccan first win in this year's IPL after five straight loses and a wash out game.
In Image: Deccan Chargers captain Kumar Sangakkara (2ndL) celebrates with teammates after the wicket of Pune Warriors India batsman Marlon Samuels
Scorecard | Full Coverage