Chennai Super Kings enter the final of the Champions League Twenty20 with the help of Suresh Raina's unbeaten 94 in 48-balls , followed by a clinical bowling display.They beat Royal Challengers Bangalore by 52 runs in Durban on Friday.Opting to bat, Chennai rode on an 81-run second-wicket partnership between Raina and Murali Vijay to post an imposing 174 for four after a long rain-interruption reduced the match to a 17-over-a-side affair. Murali Vijay made 41 in 32-balls. The Indian Premier League champions then came out with a disciplined bowling performance and restricted Bangalore to123 in 16.2 overs as Manish Pandey's fighting 52 off 44 balls went in vain. Paceman Doug Bollinger scalped three wickets for 27 runs while Sri Lankan spin wizard Muttiah Muralitharan bagged two for 38.Chennai will now take on the winner of the second semifinal between South Australia and Warriors.