The Narcotics Control Bureau and the Special Cell of Delhi Police have busted a transnational methamphetamine cartel with the recovery of 328 kg of the contraband, worth around Rs 262 crore, from a house in Delhi's Chhatarpur, a government statement issued on Sunday said.

The crackdown, named "Operation Crystal Fortress" -- a coordinated intelligence-based operation targeting high-volume synthetic drug networks -- resulted in the arrest of two individuals, including a woman from Nagaland, on November 20, the Ministry of Home Affairs (MHA) statement said.