The legal threat to this weekend's Indian Grand Prix is at an end after a Supreme Court hearing into alleged tax irregularities was delayed until next week.

A petition seeking the cancellation of the race was lodged with India's Supreme Court earlier this week amid allegations that race organisers Jaypee Sports International Limited did not pay entertainment taxes due on last year's event.

However, a spokesman for the race organisers confirmed to Press Association Sport the hearing will now take place following Sunday's race, clearing the way for the 16th round of the season to go ahead as planned.

Meanwhile, runaway championship leader Sebastian Vettel set the pace in second practice for the race as the Red Bull driver served notice of his intention to wrap up a fourth successive world title with yet another victory in his all-conquering 2013 season.

Vettel, who leads the drivers' standings by 90 points with just 100 left to play for over the final four rounds, was fastest in Friday morning's opening practice and improved further in the 90-minute afternoon session, lowering the benchmark to one minute 25.722 seconds.