England collapsed to a hapless 191 all out against spin and were then asked to follow on by India on day three of the first Test.
Pragyan Ojha finished with five for 45 as he and Ravichandran Ashwin made a nonsense of Graeme Swann's manful attempts to chip through India on what had appeared a lifeless surface on the first two days of this series.
In reply to 521 for eight declared - England lost four more wickets for 69 runs on Saturday morning and then, despite Matt Prior's 48, their last three by teatime. Prior responded to a critical situation with determination, interspersed with his instinct for counter-attacking strokeplay, but could not turn the tide.
Kevin Pietersen's comeback innings following his successful 'reintegration' was fretful throughout. He could easily have been out twice before adding to his overnight six, but Ojha knocked out his middle-stump as Pietersen played inside a delivery which turned sharply from wide on the crease round the wicket.
Ian Bell was then up the wicket to Ojha and went through with an attempted lofted drive to go for an embarrassing exit for a golden duck - caught at deep mid-off. Alastair Cook crossed and survived the hat-trick ball.
He seemed fortunate soon afterwards when Ojha pitched on line and again found turn to beat the forward-defence but did not win the lbw verdict from Tony Hill. India need not bemoan the absence of DRS for long, though - because Ashwin (three for 80) lured Cook into a drive and had him edging some spin low to slip, where Sehwag took a neat catch.
Samit Patel played out his luck and skill as the first element was forthcoming for Prior, dropped on three after clubbing a full-toss from Ashwin to Zaheer Khan on the square-leg boundary.
But it was not Patel's day. He got past the initial spin threat, only to be lbw to one perhaps sliding towards leg when India belatedly introduced frontline seamer Umesh Yadav. Prior and Tim Bresnan closed out the session, and began the next with promise in a stand of 47.
But Bresnan, understandably playing low in defence, was undone by rare extra bounce as Ojha picked up his fourth wicket - caught at gully. Stuart Broad announced himself by hitting Ojha over midwicket for four first ball; then when Ashwin returned, he took 13 of the 14 runs off his first over back, including a hoick for six over long-on from the crease.
But England's resistance was short-lived, Broad lbw to one from Zaheer that again might have beaten leg-stump, and then Prior last out missing an inside-out drive at Ojha.