"Chidambaram's comments amount to putting in dock his own government. It is height of vote bank politics. Congress chief Sonia Gandhi should apologise for such statements and also the decision of Rahul Gandhi to go to the JNU to support anti-national forces," BJP National Secretary Shirkant Sharma said in a statement.
He attacked Chidambaram, a former home and finance minister, for his reported comment that 2015 was the worst year in terms of polarising the country after 1992, when the Babri mosque was demolished.
He also referred to former home secretary G K Pillai's statement that the controversial change in the Ishrat Jahan case affidavit was done at the "political level" to flay the Congress leader.
"It is clear now that the case was being used by Congress to falsely target Narendra Modi and Amit Shah. Chidambaram is now making these comments as a cover up exercise," he said, adding that it showed Congress can stoop to any level to satisfy its lust for power.