The father of former Narcotics Control Bureau (NCB) Mumbai zonal director Sameer Wankhede has filed a contempt petition in the Bombay High Court against Maharashtra minister Nawab Malik, alleging a breach of an undertaking given by him.

In his contempt plea filed on Wednesday, Dnyandev Wankhede has alleged the NCP leader had committed a "wilful breach" of his undertaking given to the high court in December last year of not making or posting any defamatory comments against the family of the IRS officer.