The Formula One Indian Grand Prix kicks off this Friday at the Buddh International Circuit in NOIDA. Defending champion Sebastian Vettel of Red Bull and Ferrari's Fernando Alonso will both be seen in action in the second edition of the Indian Grand Prix. Vettel has won three straight grand prix in this season so far, snatching the drivers' championship lead from Alonso. Other top contenders include Mc Laren's Jenson Button and Lewis Hamilton, Michael Schumacher of Mercedes and Red Bull's Mark Webber.Meanwhile, India's first Formula One motor racing driver, Narain Karthikeyan, insisted that his future remains in the sport. He hoped to have the best finish of the year this weekend at the Indian Grand Prix. Karthikeyan currently plays for HRT, which is a Spanish Formula One team founded by former driver Adrian Campos.