If you are expecting a personal invite from Ram Gopal Verma for his UP coming release 'Darna Zaroori Hai' and you receive a 'coffin' instead, then don't be shocked.

The film's promotional team has designed a unique concept to create the 'fear factor' by sending out invites to mediapersons and distributors in coffin-shaped black packs.

Film's spokesman Ravi Prakash told this was an 'innovative' idea derived by the marketing department, just to create an ambience of fear, which the movie, to be released on April 28, is all about.

He said though there was not a concrete reason behind this, they just thought of creating something new, different and which would immediately attract the attention of anyone who receives it.

''Everyone fears death the most in life and a black coffin is symbolic of it. Therefore, we thought this kind of an invite format is apt for a film which is all about fear,'' he said.

As for the movie, boasting of a strong star-cast, including Bollywood megastar Amitabh Bachchan who is for the first time doing a horror film, it has six ''spine-chilling'' stories, each of about 15 minutes.

Prakash said, though the film has the same concept of Ram Gopal Verma's earlier movie 'Darna Mana Hai', which was also a set of small stories, this time there are more frightening stories and scenes, which they expect will scare the audience jump from their chairs.

To add a little 'spice' to the three hours of horror drama, Verma has also incorporated two songs in the movie to provide relief in between horror stories.

On why such a big star cast, also including Anil Kapoor, Suniel Shetty, Arjun Rampal, Riteish Deshmukh, Rajpal Yadav, Bipasha Basu, Sonali Kulkarni, and Makarand Deshpande, he said ''since the film includes six stories, it would not have been conducive to repeat the actors as the audience, at a time, would identify them in one role only.''

Another high point of the movie is that it has been made by seven directors, who, besides Verma, are Sajid Khan, Chekeravarthy, Manish Gupta, Jijy Philip, Prawal Raman and Vivek Shah. And the music is not by one, but three composers including Nitin Raikwar, Taabish Romani and Shailendra Barve.

Terming the movie as an 'experimental' venture, Prakash said ''they would have liked to use the idea of ''coffin invites'' for the masses also, but it is not possible to produce gift packs in such large numbers.''

However, after Verma's track record of making horror movies - like critically acclaimed 'Bhoot' and 'Darna Mana Hai' that did not go well with the masses, he is hoping that his latest offering will attract audience to the cinema halls to receive a three hours of ''fear-dose''.