A man was found dead in his seat at a Delhi theatre screening Bhoot, which its director Ram Gopal Varma has warned could pose a health risk to those with a nervous disposition.

A police official told Reuters that the theatre's cleaning staff found the man - aged around 50 - slumped in his seat early on Tuesday morning after the end of the late night show.

He was not carrying identification papers nor did he have any external injuries.

"Nobody has come forward to claim the body," said the police official.

Bhoot is a spooky thriller set in a high-rise Mumbai apartment. It is running to packed houses in many parts of the country.

Before the movie begins, a message from the director appears on the screen warning pregnant women and people with heart problems that they view the film at their own risk.

It is not known if the man's death had anything to do with the movie.

More reports from Delhi