MUMBAI: The Mira-Bhayandar-Vasai-Virar police have busted a chemical manufacturing unit in Telangana that allegedly supplied a key ingredient used to make mephedrone, or MD, as part of their. Mira Bhayandar-Vasai Virar Police have busted an illegal chemical manufacturing facility in Telangana that supplied precursor materials for Mephedrone, leading to the arrest of the manufacturer..