Filmmaker Mahesh Bhatt has written a letter to Prime Minister Manmohan Singh, expressing his displeasure over the manner in which things were handled after his son shared information about terror suspect David Headley.

"In the letter, I have expressed my deep anguish over the manner in which the investigation was handled after my son Rahul voluntarily shared information with the police," Bhatt said on Thursday.

"I have narrated the chain of events I and my family had to go through after my son did what was expected of him as a responsible Indian citizen," the film veteran said.

"We woke up to a sense of great betrayal and irreversible damage. The Prime Minister should intervene and set the right example by condemning whatever happened. Otherwise such events would discourage any citizen from participating in the fight against the menace," he said.

Alleging that the investigating agencies had leaked selective information to the media, which projected his son "in a wrong way", Bhatt said taking advantage of the situation right wing forces had stopped screening of his movie 'Tum Mile' in Gujarat.

Bhatt said he had not asked for any security but reported to Mumbai police about the level of threat he, his office and his movie faced.