India, Nov. 10 -- It's more than palpable in Sidharth Malhotra's demeanour that he is extremely kicked about playing a "quintessential Bollywood hero" in his next, Marjaavaan. "It's been a great experience," says the actor, who has been going through a lull, in terms of his box office standing. But the Delhi boy isn't worried as he puts things in perspective. "Nobody knows the formula for a successful hit film," he says. Excerpts:...