The Narcotics Control Bureau (NCB) has seized about 50 kg of "high-quality" heroin, 47 kg of other suspected drugs and Rs 30 lakh in cash from the Shaheen Bagh area in Jamia Nagar here, the federal anti-narcotics agency said on Thursday.
One person was also arrested during the NCB raid, it added.
The drugs were kept in backpacks, jute bags and wrapped in packets of e-commerce firms, NCB Deputy Director General (operations) Sanjay Kumar Singh said.
The operation was conducted on Wednesday, he added.
The drugs came to the country through an India-Afghanistan syndicate that has been busted, the officer said, adding that further investigation is on.