Ind vs Eng: India stare at defeat as England take stranglehold of Mumbai test
But the England innings collapsed after the dismissal of Pietersen, with the last six wickets falling for just 56 runs. Pragyan Ojha was the pick of the Indian bowlers with five for 143 while Harbhajan Singh and Ashwin chipped in with two wickets apiece.
India sliced through the England innings after Cook was dismissed. With their efforts, both Cook and Pietersen joined Walter Hammond, Colin Cowdrey and Geoff Boycott who hold the record for the maximum Test tons for England.
The duo's double century-stand assumed more significance after the last eight English wickets fell for 139 runs.
Ojha had figures of five for 143, his second fifer in as many Tests.
England lost their last four wickets in a heap, for the addition of just seven runs, once wicketkeeper Matt Prior was run out at 406.
The tourists, who resumed on 178 for two overnight, were dismissed eight minutes before tea. The England skipper departed when he edged Ashwin to Dhoni who later caught Pietersen off Ojha in the second hour after lunch.
Cook's departure before lunch triggered a collapse in which seven wickets fell in quick succession.
Once the Cook-Pietersen partnership was broken, Ojha got into his wicket taking act with a spell of three for 52 on either side of lunch during which he sent back Jonny Bairstow (9), Samit Patel (26) and Pietersen, who struck 21 fours and four sixes in his 233-ball knock in 317 minutes.
Ojha had accounted for Nick Compton and Jonathan Trott yesterday. But Pietersen was especially harsh on Ojha who foxed him twice at Ahmedabad.
Ashwin captured the wicket of Cook while Harbhajan Singh, the third spinner in the team, struck late in the session to send back Stuart Broad caught brilliantly at silly point by a diving Pujara, and then trapped James Anderson in front.
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