A criminal defamation and obscenity case was registered by the Mumbai police on Friday against comedy group All India Bakchod (AIB) for posting a supposedly “lascivious” picture of Prime Minister Narendra Modi on Twitter.

AIB had on Thursday tweeted a photograph of a Modi look-alike peering into his mobile phone at a railway station alongside an actual photograph of the PM, with props superimposed with the help of Snapchat’s ‘dog filter’.

The dog filter is a special effect app that allows users to add a dogs nose, ears and tongue over their faces while taking a selfie or on other photographs. The post had a hashtag – “#wanderlust” – that apparently referred to Modi’s frequent foreign visits.