The DRI has seized around 300 kg of heroin worth Rs 879 crore allegedly smuggled from Afghanistan and arrested one person in this connection at the Jawaharlal Nehru Port Trust (JNPT) in neighbouring Raigad district, officials said on Sunday.

The contraband, seized on Thursday, is one of the major narcotic seizures in the recent times, they said. The consignment, allegedly smuggled from Afghanistan via Iran, was declared as gypsum stone and talcum powder, an official from the Directorate of Revenue Intelligence (DRI) said.