While protesting outside a mosque in Haryana's Hisar against the terror attack on Amarnath Yatra pilgrims in Anantnag on July 10, local Bajrang Dal workers slapped and manhandled an imam after he refused to chat 'Bharat Mata Ki Jai'.

The workers of the right-wing group alleged that some outsider Muslims were living in the mosque.

The police have taken cognisance of the matter and begun its investigation.

Bajrang Dal leader Kapil Vats said, "Many Muslims are illegally living in Hisar. They are a threat to the security."

SHO Dayanand said, "A complaint has been registered against unknown people. We are investigating the matter."