Hyderabad: Four persons allegedly involved in the transportation of mephedrone, a banned narcotic substance, were arrested in Telangana’s Yadadri Bhuvanagiri district, police said on Sunday, August 9. The police seized 27 kg of the contraband, valued at Rs 54 crore. Based on their confession, the police raided the laboratory and seized equipment used in manufacturing the drug—a reactor and a centrifuge. The key accused in the case, among them the laboratory owner, are absconding, and efforts are underway to apprehend them, police said. The seized laboratory premises and equipment will be dealt with in accordance with the law, police added.