Mumbai, June 7 (IANS) Bollywood actor Abhishek Bachchan, whose much awaited film "Sarkar Raj" was released Friday, does not feel that he should always be paired with his wife Aishwarya Rai in a husband and wife role.

"Just because we're husband and wife doesn't mean we should play the same roles in all our films," Abhishek told IANS in an interview.

Earlier, the duo was seen together in Mani Ratnam's "Guru" in 2007.

In "Sarkar Raj", which also stars Aishwarya and Abhishek's father Amitabh Bachchan, Aishwarya has not played his wife. "In fact there is no relationship between Aishwarya and me in "Sarkar Raj"," Abhishek said.

The actor, who is used to experimenting with his body language and weight to get into the skin of a character, says that if the audience doesn't become one with the character while watching his film, it is his failing as an actor.

Excerpts:

How different are you and your father in "Sarkar Raj" compared to "Sarkar"?

In "Sarkar Raj", Pa (Amitabh Bachchan) would be seen with an added slouch. Pa had to be shown more aged than the first part of the film. A lot of time has passed and we see it in both our performances. My character has more responsibility on his shoulders unlike my earlier character, which was that of a hungry and lean man who was eager to prove himself. Now, my character is a confident and successful man.

I believe you've put on weight for the role?

I have. We wanted to show Shankar Nagre as a healthier man as he was in the first part, just as a successful and well-settled man. Even my clothes in "Sarkar Raj" have changed. In "Sarkar", I was more casually dressed but in "Sarkar Raj", I am more formally attired in a suit all through.