Eng 182-2published at 59.4 overs
Joe Root is certainly looking to attack.
The England captain goes into Jos Buttler mode and skips down the pitch to launch Ravindra Jadeja back over his head for six.
Heck of a strike that.
Anderson equals McGrath's record for a paceman of 563 Test wickets
Cook hits 33rd Test hundred in his final innings before international retirement
Opener also passes Kumar Sangakkara in 5th in all-time runscorers' list
Means Cook is Test cricket's most successful left-handed batsman
Root dropped on 94 by Pujara at slip on way to his century
Jack Skelton
Joe Root is certainly looking to attack.
The England captain goes into Jos Buttler mode and skips down the pitch to launch Ravindra Jadeja back over his head for six.
Heck of a strike that.
Geoffrey Boycott
Ex-England batsman on BBC Test Match Special
People will be asking that if he has batted like this in his last Test, why is he retiring? He's playing now like he's more relaxed. It's off his mind and he's made his decision. It's a different ball game.
#bbccricket
Francis Edwards: As happy as I am with Cook doing well in his last game, the series has gone. Where was he during the Ashes, the Ashes before and this series other than dead rubber games? Those were moments when he needed to stand up.
Cook 76, Root 55
Joe Root drives Mohammed Shami out square for an easy single.
Jonathan Agnew
BBC cricket correspondent on Test Match Special
Once again the crowd is on its feet, once again Cook shakes Root's hand. What a day this is turning out to be.
Alastair Cook gets a thick inside edge into the leg side for a single.
That run takes Cook ahead of Kumar Sangakkara to become the fifth highest Test run-scorer and highest left-hander of all time.
Shami targets Root's pads with the first ball after drinks and there is a half-hearted appeal for lbw.
But Root is hanging more leg side and that was heading way down leg. Not out.
India have given Joe Root a life this morning...
Michael Vaughan
Ex-England captain on BBC Test Match Special
Cook has played nicely. The only bowler causing him problems is Shami from round the wicket. He's the only one that's looked like getting a wicket.
Andrew Samson
BBC Test Match Special statistician
That's Root's first 50 in eight innings. If he hadn't got there it would have been his longest sequence with a half-century in Test cricket.
Lead by 209
Ravindra Jadeja hangs one out wide and Joe Root slaps it through the covers for one.
Is he looking to attack now he's passed 50?
Changing his approach hasn't exactly served him well in trying to convert before.
Time for a drink.
He was dropped on 46 but Joe Root has moved to a fine fifty with some lovely shots this morning...
Tex 81111
If aliens do land before the start of the Sri Lanka tour, shall we try one out as an opener?
Tom
Eng 167-2
Joe Root is looking to finish a tough summer on a high note.
And he's halfway there - playing late with aplomb and slicing through third man for four to bring up his fifty.
Cook 73, Root 48
Shami gets one to nip back into the upper part of Cook's pads and there is an appeal for lbw.
Not given.
And replays confirm it was not out - Cook got bat on that.
That's a much better late cut from Root off Shami but there is a fielder out so that's just a single.
It's enough to bring up a century stand between Root and Cook off 171 balls.
Lead by 201
Root got one for that dropped chance, bringing Cook on strike and the opener slides it past backwards of point for a couple more.
That takes England's lead above 200.
Michael Vaughan
Ex-England captain on BBC Test Match Special
It was too full to play that shot. It was a sharp chance.
Joe Root goes back and looks to cut behind square but edges it towards slip...
Ajinkya Rahane can't get his hands across to the right in time and shells the chance.
It was tough and went quickly to him.
#bbccricket
Steve Briddon: To be a bit fair to Pant, Inspector Gadget would have struggled with some of the deliveries he's been expected to stop....
LutonEye: Gadget was robbing a living too. Was always his niece Penny and that dog saving the day.