The Times of India. Patna/Guwahati: Six people were arrested and 1,424 bank accounts frozen during a multi-agency crackdown on an alleged transnational drug trafficking and hawala network operating across Assam,. Union Home Minister Amit Shah says Operation Trident dismantled an international narco-cartel across Assam, Mizoram and Manipur, leading to 18 arrests and the freezing of 1,424 bank accounts.