Gautam Gambhir scored 63 off 52 balls to help Kolkata beat Chennai by five wickets.
Kolkata Knight Riders innings:
20th over: 140 for 5. After giving two off the first ball, Yusuf bowls a dot and then picks up Yusuf Pathan off the next. But Das smacks Ashwin for four to seal the victory for KKR.
Yusuf Pathan c du Plessis b Ashwin 12(11)
19th over: 134 for 4. Gautam Gambhir departs as he adjudged LBW. Bravo picks up his man. Meanwhile, Das comes in and he smashed him for four off the first ball he faces to take the pressure off and then follows it up with a two and another two, two and a one. CSK now need six off the last over.
Gambhir lbw b Dwayne Bravo 63(52)
18th over: 124 for 3. R Ashwin comes into the attack and KKR are happy to just deal in the single in this over. Take six single from the over.
17th over: 118 for 3. Can this be a game-changer? Albie Morkel picks up Tiwary who tries to play a chip shot but manages to find Yo Mahesh at the square leg. Gives six from the over.
Manoj Tiwary c Yo Mahesh b Albie Morkel 13(13)
16th over: 112 for 2. KKR slowly but surely is taking the game away from the CSK. Manoj Tiwary smashed the second ball of Raina's over for a four through the square leg and the duo in the middle pick up another nine from the over.
15th over: 103 for 2. Gautam Gambhir brings up another fifty, his fourth in this year's IPL. He is finally cutting loose now as he smashes Bravo through the extra cover for four off the fifth ball of the over and follows it up with another boundary over the mid wicket. Eleven from the over.
14th over: 92 for 2. Suresh Raina continues and bowls a tight over as he gives six from the over. This is surely going down the wire.
13th over: 86 for 2. Bravo comes into the attack and picks up important scalp at a vital time. Kallis tries to punch it towards the cover but gets an edge and MS Dhoni picks up a regulation catch.
Kallis c Dhoni b Dwayne Bravo 26(31)
12th over: 82 for 1. Suresh Raina, comes into the attack and Kallis hits him for a boundary off the third ball through the mid wicket region and the duo picks up seven from the over.
11th over: 75 for 1. Jadeja continues gives seven from the over. Gambhir and Kallis are happy with ones and twos at the moment as they have nine wickets in hand.
10th over: 68 for 1. Dwayne Bravo comes into the attack and bowls a neat and tidy over. Good start to his spell as he gives away just four from the over.
9th over: 64 for 1. Ravindra Jadeja, left-arm spinner, comes into the attack and gives away five singles and a wide from his first over. Meanwhile, Kallis and Gambhir brings up fifty run partnership.
8th over: 58 for 1. Yo Mahesh, comes into the attack and another wayward over. This is not at all what CSK want. He bowls two wide balls and gives too much width to Gambhir and the KKR hits him for four through the point region. You just can't bowl there to him.
7th over: 47 for 1. Shadab Jakati is back into the attack and after keeping the first four balls tight, Gambhir steps down the track and smashes him for a six straight down the ground. Good over for KKR.
6th over: 37 for 1. Albie Morkel continues and a wayward bowling this time around as he gives away a no ball and two wides in the over. CSK can't give away free runs as they have just 139 on board. Six runs from the over.
5th over: 31 for 1. Ashwin continues and Kallis cuts loose this time as he smashes him over the square leg boundary for the first six of the KKR innings. KKR pick up ten from the over. A good one for Kolkata.
4th over: 21 for 1. Morkel continues and a bottom edge goes for four over the keepers head. Bowler is surely unlucky this time. But a pretty decent over as he gives just six from the over.
3rd over: 15 for 1. R Ashwin comes into the attack and bowls an excellent first over. He bowls four dot balls on trot and then forces McCullum to make a mistake and he did that as he gives a simple catch to Jakati at mid-off.
Brendon McCullum c Jakati b Ashwin 2(8)
2nd over: 14 for 0. Albie Morkel comes into the attack and he bangs a short one in that hits Gambhir's helmet but Gambhir replies him with a cracking boundary through the point region. Another seven from the over.
1st over: 7 for 0. Jakati opens the attack for KKR and Gambhir welcomes him with a boundary off the first ball through the cover region. KKR pick up seven from the first over.
Chennai Super Kings innings:
20th over: 139 for 5. Narine bowls the last over of the CSK innings and gives ten runs from it. Great bowling by KKR bowlers restrict them to just 139 from the quota of overs.
19th over: 129 for 5. Lee continues and MS Dhoni makes good use of his pace as he smashes his third ball for four down to the third-man and duo runs well between the wickets to make it eleven from the over.
18th over: 118 for 5. Narine continues and bowls another fantastic over. Restricts the batsmen to just five from the over and picks up Ravindra Jadeja, as he tries to clear the long-on fence but gives an easy catch to Deba Das.
Ravindra Jadeja c Deba Das b Narine 9(13)
17th over: 113 for 4. Finally a boundary for CSK, their first off 47 balls. Dhoni slashes Lee's first ball to deep backward point for a boundary and then follows it up with two double of next two balls. Threes singles from last three balls make it eleven from the over.
16th over: 102 for 4. Sunil Narine is back into the attack and the offspinner bowls an excellent over at the death. Gives just four from it. Excellent stuff by KKR bowlers.
15th over: 98 for 4. Rajat Bhatia comes back into the attack and CSK picks up six singles from the over. It's high time CSK up the ante now.
14th over: 92 for 4. Iqbal Abdulla is back into the attack and bowls an excellent over. He restricts the batsmen down to just four from the over. KKR will not mind giving singles away.
13th over: 89 for 4. Kallis bowls an excellent last over his as he restricts the batsmen to just four from the over and picks up and all important wicket of set Suresh Raina. Raina tries to go for the maximum but gets a top edge and Yusuf Pathan takes a good catch.
Raina c Yusuf Pathan b Kallis 44(34)
12th over: 84 for 3. Laxmi Shukla, right-arm medium, comes into the attack and gives seven runs off the over. MS Dhoni and Suresh Raina are in the middle for the CSK.
11th over: 77 for 3. Kallis continues and he picks up dangerous Bravo off the first ball. Bravo tries to go straight down the ground for six but mistimes it and only manages to find Iqbal Abdulla at long on. MS Dhoni comes to the crease.
Dwayne Bravo c Iqbal Abdulla b Kallis 12(12)
10th over: 74 for 2. Bhatia continues and Raina picks up three off the first ball as he hits her through the extra-cover. The duo picks up seven from the over.
9th over: 67 for 2. Kallis continues and Raina plays a fine leg glance for four off the second ball and in process brings up 2000 runs in the IPL. Another good over for CSK as they pick up seven from the over.
8th over: 60 for 2. Rajat Bhatia comes into the attack and there is no holding back Raina as he flicks his fourth ball for four to fine-leg. Good over for CSK once again as ten runs comes off it. It's time for strategy break.
7th over: 50 for 2. Jacques Kallis comes into the attack and Raina welcomes him with a boundary as he punches his first ball it to deep extra cover. But Kallis makes a good comeback as he restricts them to seven from the over. Raina is looking in fine form today.
6th over: 43 for 2. Iqbal Abdulla is back into the attack and bowls an expensive over as Raina hits him for four through fine-leg region off the third ball and Dwayne Bravo uses his feet off the last ball to hit him out for the maximum over the long-on.
5th over: 32 for 2. Another bowling change as Sunil Narine comes into the attack and the danger man Hussey departs after going for a suicidal run-out. He was looking dangerous as he picked up a boundary a ball before he went for that single.
Michael Hussey run out (Brett Lee/Brendon McCullum) 18(19
4th over: 26 for 1. Lee continues and after restricting the batsmen to just three off first four balls, Raina cuts loose as he gives himself room and hits him for the maximum over the long-off boundary and then picks up two from the last ball.
3rd over: 15 for 1. Yusuf Pathan, right-arm offspinner, comes into the attack and Hussey hits him for four through the square leg off the first ball and follows it up with a three. CSK pick up ten from the over.
2nd over: 5 for 1. Brett Lee, right-arm fast, comes into the attack and picks up du Plessis with his fourth delivery off the over. Great start for the Australian pacer. du Plessis tries to go for the pull, gets an inside edge and straight to the wicketkeeper. Just one run from the over as Suresh Raina walks into bat after the fall of du Plessis.
du Plessis c Brendon McCullum b Brett Lee 3(4)
1st over: 4 for 0. du Plessis and Michael Hussey are at the crease. Spin straight away for KKR as Iqbal Abdulla opens the attack. And he bowls a nice and tight over. Four runs come from the over with both batsmen getting off the mark.
7.30 pm. Chennai Super Kings skipper MS Dhoni wins the toss and elects to bat in the 41st match of the Indian Premier League against Kolkata Knight Riders on Monday at the Chepauk Stadium in Chennai.
Mike Hussey is back for CSK while Yo Mahesh replaces Saha. KKR are unchanged from their previous game.
Chennai Super Kings: Michael Hussey, Faf du Plessis, S Badrinath, Suresh Raina, MS Dhoni(w/c), Albie Morkel, Ravindra Jadeja, Dwayne Bravo, Ravichandran Ashwin, Vijaykumar Yo Mahesh, Shadab Jakati
Kolkata Knight Riders: Gautam Gambhir(c), Brendon McCullum(w), Jacques Kallis, Yusuf Pathan, Manoj Tiwary, Laxmi Shukla, Rajat Bhatia, Debabrata Das, Brett Lee, Sunil Narine, Iqbal Abdulla
7.15 p.m. Hello and welcome to the 41st match of the IPL, and this one's between defending champions Chennai Super Kings and Kolkata Knight Riders here at the Chepauk Stadium in Chennai. Gautam Gambhir-led KKR hold a slight upper-hand coming into this game, following a thumping win against Bangalore. On the other hand, Chennai enter this game on back of a 7-run loss to Kings XI Punjab.
Chennai lie fourth in the table with four wins and four losses, while KKR are on second with five wins and three defeats.