Key had an unlucky dismissal

It was Vaughan's second century in successive matches, following his 100 at Lord's, and third Test ton of the summer.

Debutant Robert Key made 17 during an opening stand of 56 with Vaughan before bottom-edging the ball on to his leg, trying to pull an Ashish Nehra delivery, only to see it trickle back on to his stumps.

Harbhajan Singh found prodigious turn with his off-breaks and regularly beat Butcher's bat.

He had Vaughan dropped on 30 by debutant Patel and fluffed an easy catch off his own bowling offered by Butcher on seven.

Indian captain Sourav Ganguly brought himself on to bowl with Vaughan in the nervous 90s, but served up some buffet bowling to allow the opener to cruise past three figures without difficulty.

Butcher put on 165 with Vaughan and made 53 before Harbhajan finally found his edge and Rahul Dravid pouched the ball at first slip.

Harbhajan scored his second Test half century

Harbhajan took the wicket of Nasser Hussain in his next over when the England captain gloved an attempted sweep to give Patel his first Test catch.

John Crawley edged a Zaheer Khan delivery on to his pad and the ball ballooned to gully, but Alec Stewart came in to give Vaughan support in a stand of 63.

Stewart ended the day unbeaten on 30 with Andrew Flintoff on two not out when the batsmen came off for bad light.

Earlier, Harbhajan cracked 10 boundaries in an entertaining half century, and put on 61 with Khan, as England's bowlers were frustrated by India's tail enders in the morning.

Harbhajan edged two boundaries through the slips in the first over of the day, and reached his 50 off 33 balls, before spooning a catch to Hussain at cover off the bowling of Steve Harmison for 54.

Hoggard picked up a deserved fourth wicket when Nehra edged behind to wicket-keeper Stewart to wrap up India's innings on 357.