A clinical Kolkata Knight Riders (KKR) thrashed Chennai Super Kings (CSK) by eight wickets in an Indian Premier League match.CSK managed only a paltry 103 for nine, their lowest total at their home ground Chepauk.Sunil Narine was the pick of the bowlers for KKR, taking 3 wickets for 13 runs.KKR achieved the target of 104 in just 10.1 overs, winning the match by 8 wickets.