Chennai Super Kings beat defending champions Mumbai Indians by four wickets in a thrilling IPL cricket match at the Wankhede Stadium in Mumbai last night. Chasing 158 for a victory, Chennai rode on in-form opener Smith's 57 in 51 balls and significant contributions of 31 by Faf de Plessis and Dhoni's 22 not out of 12 balls to make 160 for six in 19.3 overs.Earlier, Mumbai Indians battled their way to 157 for 6 with the help of one-down batsman A Rayudu, who made 61 in 54 balls.In another match, Delhi Daredevils lost to Sunrisers Hyderabad by eight wickets via Duckworth-Lewis method in Delhi.Two matches will be played in the IPL tournament today. In the first fixture at 4 PM, Kings Eleven Punjab will play against Kolkata Knight Riders at Cuttack. In the second encounter at 8 PM, Royal Challengers Bangalore will take on Rajasthan Royals at Bangalore.