A picture of chief minister Mamata Banerjee was defaced with cow dung allegedly by BJP workers in East Burdwan’s Raina on Wednesday night.

Asim Pal, Trinamul block president in Raina II, lodged a complaint against six local BJP workers in this connection.

“The BJP workers of the area started sloganeering against Trinamul after the result of Bihar elections was declared. We did not react to avoid a confrontation but later we found out that the picture of our chief minister put up near our party office had been defaced with cow dung. We have lodged a police complaint,” said Pal.

BJP leaders, however, denied the allegation, and claimed that party workers were not involved in the incident as it was not the culture of the party.

“Mamata Banerjee is chief minister of the state apart from being the Trinamul chief. We don’t have a culture of defacing someone’s picture,” said a BJP leader.

Police said they have started a probe into the case.