India, July 12 -- Young actor Siddharth Nigam best known for his double role in blockbuster Dhoom 3 and hit TV serial Chakravartin Ashoka Samrat proudly calls superstar Aamir Khan his first guru.

"I consider myself lucky to have started my career with Aamir sir. It was dream come true for me to work with him. Whatever I have learnt till now be it how to behave on sets, professionalism and giving your best take is all because of Aamir. The first thing he told me was you can't learn or unlearn acting as it is something that comes from within. And that is what I follow till date," says the actor during a visit to Lucknow for promotion of his ongoing show.

Talking about his first break with banner like Yash Raj, Siddharth says, "I was born an...