The best images from the Indian Grand Prix

It was not the same as inaugural year in terms of response, but the second Indian Grand Prix still recorded a turnout of 65,000 spectators.

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Defending champion Sebastian Vettel of Red Bull termed "discipline and focus" as the two main ingredients of success after winning his second successive Indian Grand Prix.

A flying Vettel faced no challenge whatsoever as he led from the start to finish at the Buddh International Circuit. Romain Grosjean of Lotus and Jenson Button of McLaren battle it out in the middle.

Vettel recorded his fourth win on the trot to extend his lead in the Drivers' Championship to 13 points over second-placed Fernando Alonso of Ferrari.

The victory from pole position was the World champion's fourth in a row -- the first time he has done that in a single season -- and maintained his dominance in India after winning last year's inaugural race at the hazy Buddh International Circuit from pole.

The 25-year-old German now has 240 points to 227 for Alonso, who started in fifth place, and his surge towards a third title in a row is beginning to look unstoppable despite the Spaniard's best efforts.

The German has been backed by Red Bull for most of his motor-racing career, from 12 or 13 years old, and took his first race win with sister team Toro Rosso.

Both his titles have come at the wheel of a Red Bull and, now 13 points ahead of Alonso with three races to go, he is favourite to become the youngest ever triple world champion at the end of the year.

Vettel, for whom it was second successive win at the India race, now has 240 points, 13 more than Alonso with three races left in the season.

"It has been incredible. To come here both years, get the pole and win the race is fantastic. It is a very special Grand Prix and I really like this circuit," Vettel said after the win.