Going into the last over bowled by debutant Ben Hilfenhaus, the Chargers needed 20, but the target proved beyond their reach as they managed just nine while losing the wicket of Ashish Reddy to the fourth delivery.
The Super Kings innings did not have the best of starts with Murali Vijay (15), back in the opener's slot after a long break, failed yet again after promising much in his short stay at the wicket.
However, the in-form du Plessis and Raina forged a partnership to add 64 runs for the second wicket in quick time. Raina looked particularly in good touch but was dismissed in the very first over after time-out in the 10th over, caught in the deep.
Image: Deccan Charges batsman Cameron White plays a shot during the IPL Twenty20 cricket match between Chennai Super Kings and Deccan Charges at The M.A.Chidambaram Stadium in Chennai on May 4, 2012.