Delhi limited Bangalore to 154/7 and chased down the victory target in 18.2 overs with five wickets in hand.
The prolific timer of the ball Sehwag hit 19-ball 47 studded with nine hits to fence and one over it while Gambhir stroked 31-ball 39 inclusive of six boundaries. Gambhir, the owner of the Orange Cap, continued his good run in the tourney with yet another signature knock. He became the first player to surpass 500-run mark in the event.
The formidable opening duo of Daredevils buried a clueless Royal Challengers under a deluge of boundaries (as many as 15 boundaries hit in first six overs) as they raised a rapidfire 90 runs in just seven overs. It was more of timing than the brutal hitting.
They made a mockery of Bangalore bowling attack as they plundered runs at will. India internationals Zaheer and Praveen Kumar were at the receiving end.
Bangalore battled back after the Viru and Gambhir jugalbandi. The veteran leg-spinner Kumble, who had a unusually quiet tourney so far, lived up to his reputation today. The wily customer bowled to a tight line and mixed up his normal leg-breaks with the goolies and slower ones in a measured way. He plucked two wickets conceding just 18 runs in four overs. He along with fiery Steyn kept Bangalore in contention in the middle overs with three quick wickets.
However Maharoof (13* off 8) and Dhawan (16* in 13) stuck to their task and ensured no further damage as their side romped home. This win keeps Delhi in hunt for semis' berth.
Earlier, debutant Sreevats Goswami crafted a fine 42-ball 52 and Misbah stroked 47 in 25 balls to help Bangalore Royal Challengers to 154/7.
Sreevats impressed one and all with a matured innings and a fine work behind the stumps too. He was stroking the ball with ease. He pulled, cut, drove and flicked with elan. This India U-19 wicketkeeper-batsman looks to be a very exciting prospect for India.
Bangalore started off on a bright note with Kallis (25 in 21) scoring some brisk runs but stuttered in the middle against a probing Maharoof and Yomahesh before the rearguard action from Misbah ensured a fighting total. The lusty hitting Pakistani collected as many as 24 runs in the the final over bowled by Bhatia.
The machine-like McGrath as usual churned out a sting stuff returning with match figures of 2/15. Change bowlers Maharoof 2/13 and Yomahesh cramped batsmen for room with an impeccable line and length. bowled wicket to wicket continued their good work plucked two wickets apiece with a measly spell.
Bangalore having put in to bat opened with a new pair Kallis and Bharat Chipli. The South African all-rounder promoted up the order after seeing off the first over from McGrath took the young left-arm seamer Sangwan to cleaners amassing 19 runs with a pull over mid-wicket fence and two boundary hits. He was looking in good touch timing the ball well and finding the gaps at ease. On the other end Chipli struggled getting the bat on ball during his brief stay before McGrath ended his misery.
Sehwag introduced Maharoof in the seventh over and the lanky Lankan didn't failed his captain's faith in the very first ball he bowled inducing Kallis to edge for a regulation catch to Karthik.
The next man in Sreevats showed the glimpse of greatness when he cover-drove Maharoof to the fence. It was perfectly out of the book everything was perfect: footwork, timing, elbow positioning, transferring body weight to front was 10/10. A class act.
In the following over Sreevats launched a calculated assault on his fellow India Colts seamer Sangwan. He collected 19 runs off that over with three boundaries and a six over mid-wicket.
Sreevats and Dravid raised 32 runs in less than four overs as Bangalore reached 70/2 halfway thro' their innings. Dilshan packed off unconvincing Dravid in the one-off over he bowled - 11th over of the innings as B'lore was reduced to 73/3.
Misbah joined well set Sreevats in the middle and the duo batted fluently as Bangalore raised 100 runs in 15th over.
Maharoof coming in to bowl his second spell struck a vital blow removing the dangerously looking Sreevats. The Lankan seamer put brake on run flow with teasing line. Also the early departure of big-hitting White and B Akhil in the shape of run-out didn't help
Challengers' cause. However Misbah's pyrotechniques in the final over steered B'lore to a respectable total that proved insufficient in the end.