Raina scored an unbeaten 100 in Chennai Super Kings' total of 186 for four and then the bowlers kept their cool to restrict Kings XI to 171 for six despite a brilliant conter-attacking partnership of 95 between between Shaun Marsh, who scored a 51-ball 73 (8x4, 2x6) and David Miller (51 not out, 26 balls, 5x4, 2x6).
Needing 19 to win off the last over, Dwayne Bravo bowled intelligently giving away only three runs but more importantly took three wickets to finish with figures of three for 34.
Marsh and Miller were on a 'Mission Impossible' but did play their part admirably well to get close to the target but in the end, 186 proved to be good enough for the CSK juggernaut to roll on.
It was always going to be a catch-up game for the Kings XI batsmen but credit to Marsh, who grabbed with both hands the chance to open the innings after regular captain Adam Gilchrist sat himself out in the last two matches after a string of poor scores.
Earlier, Raina's splendid century helped title favourites Chennai Super Kings to post a commendable total of 186 for four after opting to bat.