In the wake of a letter tweeted by Maharashtra minister Nawab Malik about various allegations including extortion against the Narcotics Control Bureau (NCB), its Deputy Director General Mutha Ashok Jain on Tuesday said they will take necessary action into the matter.

Malik earlier in the day said he is forwarding a letter written by 'someone in NCB about the various illegal activities of (Sameer) Wankhede' to the agency's DG S N Pradhan.