- The Directorate of Revenue Intelligence (DRI) seized 137 kg of high-purity crystal methamphetamine worth crores in Tamil Nadu. - The operation successfully busted a major coastal drug trafficking network operating via maritime routes. - Four individuals were arrested in connection with the international narcotics smuggling ring. - Highlights the growing vulnerability of India's coastal lines to transnational organized crime and illicit drug syndicates. - **Directorate of Revenue Intelligence (DRI):** India's premier intelligence agency under the CBIC (Ministry of Finance) tasked with anti-smuggling operations, combating commercial fraud, and intercepting contraband like narcotics and gold. **Introduction** The Directorate of Revenue Intelligence (DRI) intercepted and seized a massive consignment of 137 kg of crystal methamphetamine in Tamil Nadu, dismantling a major coastal drug trafficking syndicate and arresting four persons. **Core Issue and Detailed Points** - The Directorate of Revenue Intelligence (DRI) seized 137 kg of high-purity crystal methamphetamine worth crores in Tamil Nadu. - The operation successfully busted a major coastal drug trafficking network operating via maritime routes. - Four individuals were arrested in connection with the international narcotics smuggling ring. - Highlights the growing vulnerability of India's coastal lines to transnational organized crime and illicit drug syndicates. **Key Statutory Bodies, Acts & Concepts** - **Directorate of Revenue Intelligence (DRI):** India's premier intelligence agency under the CBIC (Ministry of Finance) tasked with anti-smuggling operations, combating commercial fraud, and intercepting contraband like narcotics and gold.