A vigilante group has warned that it will use aerosol spray paint on "inappropriately dressed" women at Thaipusam events.

The group, which sprouted on Facebook, posted pictures of purportedly "inappropriate" saree blouses as examples of clothing to avoid.

"Advance Warning to Hindu Female Patrons coming to Thaipusam festival, beware of being sprayed with aerosol paint if found inappropriate dressed," the warning on the Facebook page of the 'Thaipusam Spraying Group' reads.

The page has 143 members and was founded by one Henry Barnabas.