The filmmaker and the cast of the film unveiled its teaser here Tuesday.
Talking about the movie, Raghavan said: "In the early part of the film, something happens, and one should not miss it. I want to stress that don't miss the beginning and don't miss the end (of the film).
"If you miss the beginning...the first 15 minutes of the film, I would request you to go and catch the next show."
"Badlapur" features Huma Qureshi and Nawazuddin Siddiqui.
The film marks Varun's first time away from the romantic comedy genre. He says being part of an intense drama like "Badlpaur" was great.
"I have done three films before this and my characters in it were an extension of me. Somewhere down the line, the characters were like me. In 'Badlapur', it is something I could be when I become a father.
"There are lot of emotions (in my 'Badlapur' character). This is a total piece of art which Sriram has nicely graphed for me. This was a great experience," said the actor, who has earlier been part of "Student Of The Year", "Main Tera Hero" and "Humpty Sharma Ki Dulhania".
