KP does the double, Dhoni does it all
Not-out of the day
There has been a huge amount of debate about whether the various pieces of technology are good enough for the DRS, but it has long been clear TV replays are no good for judging whether a catch has carried. The latest example came when Kevin Pietersen flicked Praveen Kumar towards Rahul Dravid (who has been followed by the ball in this Test) at leg slip. Dravid didn't appear to claim the catch initially, but the two umpires went to the third official and from there the decision was always set to be not-out even though Dravid could well have got his fingers under the ball.
Graft of the day
Pietersen had to work extremely hard, but was duly rewarded. Overnight he was on 22 off 73 balls and he'd barely middled a shot, but the signs were much better today as he played two early on-drives. Still, his fifty took 134 deliveries which made it the slowest of his career. As the saying goes, though, good things come to those who wait and Pietersen's diligence paid off with a hundred from 216 deliveries which again was his slowest landmark. It was his first ton on home soil since South Africa, at The Oval, in 2008, in his first game as captain, and just the second in his last 37 Test innings. He wasn't finished. His fourth fifty, to bring up his third Test double hundred, took just 25 balls.
Bowling change of the day
India needed someone to help fill in Zaheer Khan's missing overs so who do they turn to but none other than the captain, MS Dhoni. As the players came out after lunch Dravid was wearing the wicketkeeping equipment and Dhoni marked out his run at the Pavilion End. Right on cue he had an lbw appeal first ball, but the real excitement came in his second over when Pietersen needed to use the DRS to save himself from being given out caught behind.
Non-review of the day
Despite being shorn of their main bowler India kept themselves in the contest with two quick wickets during the afternoon session. The second of those was Eoin Morgan who was given caught behind third ball and left the crease without hesitation. However, when replays didn't appear to show an edge there was confusion as to why Morgan hadn't reviewed it. Did he think he was lbw? Had he forgotten the DRS was allowed for edges? In the end a more prosaic explanation emerged. He thought he'd hit it.
Duck of the day
Stuart Broad is under pressure having been given a vote of confidence for this match ahead of Tim Bresnan. His main job is to take wickets, but the first chance he had to take part in the contest didn't go very well. Facing up to Praveen he played right across an inswinger and was quickly given lbw. Broad often likes to use the DRS but, of course, couldn't here. He'll hope that by the end of the third day he still hasn't got a zero by his name. For Praveen, though, it was a moment to savour as he secured a place on the honours board.
Exercise of the day
A murmur went through the crowd as Zaheer made his way around the boundary with a couple of backroom staff. He went to the indoor school by the Nursery Ground where he was spotted testing his injured hamstring with a stint on an exercise bike. Whether he takes any further part in this match with the ball remains to be seen, but he should be the first to give Praveen a pat on the back after his day's work carrying the India attack.
Andrew McGlashan is an assistant editor at ESPNcricinfo