Dayal to bowl the final over. The first ball is a low full toss as Dhoni gently taps it to long-on for a single to hand the strike back to the well-set Jadeja.
Jadeja has a big swing across the line but can only flick the full delivery to deep midwicket for just one.
Dhoni misses out on a full toss as he swing across the line and is given out leg before wicket. He immediately takes the review.
The impact is in line of the leg stump and the ball is crashing into the stumps as the decision stands.
Dhoni is out leg before wicket for 12 as CSK suffer a big blow.
CSK need 13 from 3 balls.
Wonderful bowling from Dayal as he gave away just two singles from the first three balls while striking with the wicket of Dhoni.
Shivam Dube comes in as the Impact Player.
Dayal bowls a high full toss which Dube swings over midwicket for a six.
CSK take the review for a high full toss. The ball is above the waist height and is ruled a no-ball for height.
Seven runs from that delivery plus a free hit coming up for CSK.
CSK now need 6 from 3 balls.
He bowls a low full toss as Dube can only hit it to long-off for a single.
CSK need 5 from 2 balls.
Dube gets the yorker right as Jadeja inside edges it for just a single.
CSK need 4 from last ball
Dayal delivers as he bowls a low full toss which Dube can only hit to long-on for just a single.
What a terrific final over from Dayal as he holds his nerve in the final over to guide RCB to victory, to repeat his last over heroics against CSK from last season.
Jadeja finishes unbeaten on 77 from 45 balls as CSK register a narrow defeat -- their ninth in 11 games.
RCB are all but qualified for the play-offs with 16 points from 11 matches.