He also demanded action against those threatening and intimidating theatre owners against the release of Khan's film My Name is Khan on February 12.
He also appealed to the film industry not to bow to Shiv Sena's intimidation.
Nirupam also demanded a probe into MNS chief Raj Thackeray's comment targeting SP leader Abu Azmi.
Thackeray had yesterday said that when Pakistani terrorist Ajmal Amir Kasab could learn Marathi in a year then why can't Azmi who has been living in Mumbai for years.
He said the government should also look into the provocative and intimidating language of the 'Saamna', Sena's mouthpiece, and take necessary action.