Looking back a waste of time: Abhishek Bachchan

"The greatest thing about parenthood is that it's an instinct and it just happens naturally. You learn to cope with it in your own way. If anybody asks me about tips on parenting, I just say 'dont worry about it, it will come naturally to you'," said Abhishek, who is the face of watch brand Omega. The "Paa" star says parenthood is a joyous time for both husband and wife. "Obviously, when you bring a new life into the world you have responsibility towards that. But it's the most joyous time for any parent," he said.