Fabulous Yuvraj Singh kept Bangalore's hopes in this year's IPL alive, as the Royal Challengers defeated the Delhi Daredevils by 16 runs at Bengaluru last night.AIR correspondent reports, so with some ruthless hitting, Yuvraj has again announced his return to form.His Herculean effort had went in vein in the last game against Rajasthan, but it was all Yuvraj and his maximums at the M Chinnaswamy Stadium last night.Bangalore got off to a pedestrian start, after they were sent in to bat.They were 94 for 3 in the 13th over, when Yuvraj came to the crease.Without wasting much time, Yuvraj picked from where he left in the last match, and scored a swashbuckling 68 not out off just 29 balls.His innings comprised 9 sixes, 4 of which came in the last over bowled by Rahul Shukla, which helped Bangalore compile 186 for 4 in the alloted 20 overs.AB Devilliers also chipped in with 33 off 17 balls. In reply, Delhi, after losing 2 early wickets, resisited brilliantly. JP Duminy, Kevin Peitersen, Kedar Jadhav and Mayank Agarwal tried to steady the Delhi ship, but the target proved a little too much for Delhi.Muttiah Muralitharan and Mitchell Starc bowled brilliantly, bagging 2 wickets each for Bangalore. Yuvraj did magic with the ball as well.He, even though went wicketless, but conceded 28 runs from 4 overs. He was adjudged man of the match.Earlier, in another match, Chennai Super Kings defeated Rajasthan Royals by five wickets at Ranchi.