West Bengal Chief Minister Mamata Banerjee on Saturday slammed the BJP-led government at the Centre for allegedly letting loose central agencies on her nephew and TMC national general secretary Abhishek Banerjee in a coal scam case, claiming that some BJP ministers were working hand in glove with coal mafia.

She also accused the Narendra Modi government of trying to "bulldoze the federal structure" of the country and snatching away rights of the states.