BJP today hit out at Congress leader P Chidambaram for his reported remark that 2015 was the worst year in terms of polarisation after 1992. <br/><br/>In a statement, Party secretary Shirkant Sharma alleged that Mr Chidambaram's comment has encouraged anti-national forces and are aimed at vote bank politics. He said, Congress Chief Sonia Gandhi should apologise for such statements. Mr Sharma said there was no communal polarisation in the country. <br/><br/>