Director Sooraj Barjatya of "Hum Aapke Hain Koun?" fame says his just-released "Vivah", which deals with the concept of arranged marriage, has been his toughest film so far.

"'Vivah' is a simple film about two sensibilities coming together and discovering each other to an extent that they know more about each other than themselves. It's going back to innocence for me. This film is based on a real life story and like all my films 'Vivah' also has an emotional climax. It is my toughest film so far," said Barjatya.

The film has Shahid Kapur and Amrita Rao in lead roles. Shahid said the film's concept was very alien to him.

"I had many questions in my mind when Sooraj-ji narrated the script to me. The film is about arranged marriage, a concept very alien to a 25-year-old guy like me. I mean I've never formally met a girl for a 'rishta' (marriage) or ever had that kind of meeting in my life - though I've seen it around me in my family and friends circle. But that's about it," said Shahid.

"The film traces the journey from engagement to marriage, an area completely untouched today. I'm sure the people would identify with the film. They'll be like 'Oh! This has happened to me or this is what I told you the first time we met,'" added Shahid.

Amrita playing a coy, demure bride in "Vivah", said she was overwhelmed at the opportunity of working with Rajshri Productions.

"'Vivah' is god's gift to me. My long cherished childhood dream of working with Sooraj-ji has been fulfilled," said Amrita.

And what is her take on love marriage versus arranged marriage?

"I think marriage is the most important decision of life. It's really not about love or arranged marriage. One needs to spend adequate time with the person, know him or her completely. And faith in your partner is, of course, very important," said Amrita.