A sensational bowling effort by Chennai Super Kings saw them defend a modest total as they crushed Royal Challengers Bangalore by 24 runs to regain their position at the top of the table in the Indian Premier League cricket tournament.Having posted a modest 148 for nine in 20 overs, CSK bowlers led by Ashish Nehra (3/19 in four overs) and Dwayne Bravo (2/19 in 3.4 overs) exhibited brilliant death over skills to bundle out RCB for 124 in 19.4 overs. Such was the dominance of CSK bowlers at the back end of the innings that RCB lost as many as seven wickets for 27 runs in only 5.5 overs.Dhoni smashed 29 off 18 balls that had two huge sixes one each off spin twins Abdullah and Chahal before being holed out in the deep.Once Dhoni was gone, even 150 looked a distant dream as the 'Men in Yellow' finished two runs short of what seemed like a par-score on a slow Chepauk track