The 3,000 kg heroin was seized from Gujarat port, The Directorate of Revenue Intelligence (DRI) is questioning the suspects arrested in connection of the case.
The agency has so far arrested eight persons including four Afghan nationals, one Uzbek and three Indian nationals. During further searches, it has also seized about 10-kg powder suspected to be cocaine.
A Kandahar-based company, Hassan Hussain Limited, was shown as the exporter of the consignment that was sent through the Bandar Abbas port in Iran. A possible role of Pakistan-based elements is also being examined.
The syndicate had roped in several locals to facilitate the smuggling on the pretext of importing talc stones from Afghanistan. Among them was allegedly Govindaraju Durga Purna Vaishali and her husband, Machavaram Sudhakar, who had been living in Chennai for the past several years.