Top Election officials said a case was registered at Kotwali police station of Mohammadi in Lakhimpur Kheri district under IPC against certain local BJP leaders.
Sources said the BJP leaders had sought permission for holding the 'Chai Pe Charcha' programme on March 8 at a tea stall in the area and the state's Chief Electoral Officer had granted permission for the same.
Poll officials, however, reported that free tea was served to participants of the discussion, which was construed as bribing of voters.
"There is no ban on holding of such events with prior permission of the concerned district poll authorities. But anything which is in violation of the Model Code of Conduct would not be permitted at such events and apropriate action would be taken in cases of violation," Sinha told PTI.
He said anything which is distributed free by political parties will be construed as an attempt to entice voters.