Chasing 148 to win, Scott Styris (36) and Rohit Sharma (23) kept Hyderabad side going after Gilly (54 off 36) departed and Shahid afridi's blistering 20 runs off 6 balls in the eighteenth over completed Chargers' convicing victory.
Chennai Super Kings, who slumped to their third consecutive defeat today, seemed to have lost their depth in batting department after Matthew Hayden and Mike Hussey left the side to join their national teams.
The Super Kings managed to put the breaks briefly on the Deccan Chargers when medium pacer Manpreet Singh Ghoni brought off a fine return catch to dismiss Gibbs off the first ball of the fifth over. But the Kiwi all rounder Scott Styris gave Gilchrist good company and kept Chargers going.
Gilcrhist posted his own 50 off 34 balls, with six fours and two sixes, and the duo then registered the 50 stand for the second wicket off 31 balls.
The Chargers were 77 for 1 in 9.2 overs. But they suffered a set back when Albie Morkel deceived Gilchrist to give a splendid catch to point fielder S Badrinath. Gilchrist scored 54 off 36 balls, with seven fours and two sixes.
As Rohit Sharma joined Styris, the Chargers were 88 for two in 11 overs. They required 52 runs to win, an apparantly easy task with eight wickets in hand.
They pushed the score to 95 for two in 12.3 overs needing 50 from 45 balls. With a single off spinner Muralitharan by Rohit, Chargers posted the 100 in 12.5 overs. They needed 37 to win off 37 balls when Sharma hoisted a six in the 14th over off medium pacer Joginder Sharma.
Styris on 27 and Rohit Shrma on 22, the Chargers required 27 from 28 balls. Off the second ball of the 16th over Styris pulled Sharma for a six over mid wicket.
The Chargers then needed 20 from 24 balls. But they suffered a set back as Muralitharan, bowling his last over, had Rohit Sharma caught at mid on by Badrinath. Rohit, who added 47 runs for the third wicket off 38 balls with Styris, scored 23 off 17 balls, hit a six and a four.
Styris remained unbeaten on 36 as the new batsman Afridi smashed Joginder Sharma for two sixes and two fours in an over to complete the victory.
They won by seven wickets and posted their second win in the league and increased their tally to eight points.
Earlier, Bottom-placed Deccan Chargers, who desperately needed a win to keep their fans' hopes alive, restricted Chennai Super Kings to 144/7.
VVS Laxman, who sustained an injury during his last game, sat out as Hyderabad Deccan Chargers stand-in skipper Adam Gilchrist won the toss and elected to bowl.
Thanks to a mix of Hyderabad's acrobatic fielding and Chennai's poor shot selection, Hyderabad were on top throughout the first half.
Chennai had lost four wickets within fifty runs before Suresh Raina (32) and MS Dhoni (23) came to their rescue and some lusty hits by Morkel and Gony in the death overs ensured Chennai a decent total.
For Deccan Chargers, RP Singh scalped two as all other bowlers tested by stand-in-skipper Gilchrist took one wicket apiece as
Deccan Chargers bowlers rattled the top order batsmen by taking quick wickets at regular intervals.
On the other hand, Chennai Super Kings once again failed to give a good start to their team. Opener Parthiv Patel fell cheaply to Vijayakumar when the score was just four on the board.
Stephen Fleming, who scored some aggressive shorts, however, could not carry to get a big score as he was dismissed by his national team mate Styris.
The much expected Anirudha, son of former Indian opener Krish Srikanth, who was promoted up in the order failed to deliver at the right time.
The rescue act came when S Raina and Dhoni joined together and scored 32 runs for the fifth wicket.
When Chennai Super Kings were struggling at 86 for six, J A Morkel and Joginder Sharma did some work.
Finally, M A Gony scored 15 runs in just six balls with two sixes, to give Chennai Super Kings a moderate total.
With inputs from Agencies