Mahendra Singh Dhoni punished Khaleel Ahmed and then marshalled his bowling resources to perfection as Chennai Super Kings comprehensively beat Delhi Capitals by 27 runs to take a giant stride towards IPL play-off on Wednesday. The talismanic skipper's couple of monstrous sixes in his 9-ball-20 did help CSK get to 167 for 8, which was at least 20 runs above-par on a tacky Chepauk track. The total was just what Dhoni needed to marshall his bowlers as Delhi Capitals were never in hunt after their batting mainstays David Warner (0), Phil Salt (17) and Mitch Marsh (5) were out by the start of the fourth over. In the end, DC managed only 140 for 8 and their struggles were real as not even 10 fours were hit in the entire innings. The DC batters managed only seven boundaries and four over-boundaries. The win took CSK to 15 points and one win from two remaining games will certainly seal their place in the last four. As far as DC's campaign is concerned, it is almost curtains with 8 points from 11 games with seven defeats.