Chennai Super Kings beat Mumbai Indians by six wickets in an Indian Premier League game against Chennai Super Kings at the Wankhede Stadium here on Friday. Opting to bat first, Mumbai Indians scored 183/7. With Kieron Pollard making 64 (30b, 4x4 and 5x6) and skipper Rohit Sharma 50 not out (31b, 5x4, 1x6). For Chennai, Ahish Nehra (3/23) and Dwayne Bravo (2/30) were the most successful bowlers. In reply, Chennai Super Kings scored 189/4 in 16.4 overs, with Dwayne Smith making 62 (30b, 8x4 and 4x6), Brendon McCullum 46 (20b, 6x5 and 2x6) and Suresh Raina 43 (29b, 4x4, 2x6). For Mumbai, Harbhajan Singh finished with 2/44.With IANS