Two people have been arrested for reportedly putting up “indecent” posters mentioning the Uttar Pradesh chief minister and his deputy, police said on Sunday.

“An FIR was registered against three persons for putting up indecent posters against Uttar Pradesh chief minister Yogi Adityanath and deputy chief minister Keshav Prasad Maurya. Sudhanshu and Ashwani have been arrested, while a hunt is on for the third person, Lalu.”

The police said the posters had been put up late on Friday night, but were removed on Saturday.

The Opposition Congress demanded the immediate release of those arrested. The party held a protest against the arrests in Lucknow on Sunday.

State Congress chief Ajay Kumar Lallu said: “The way in which the BJP wants to suppress the voice of people... if there is so much anger (due to such posters), imagine what will happen when their unlawful activities will be unmasked before the public. I want to gift the Indian Constitution to him (Yogi Adityanath), so that he reads it thoroughly....”