The National Investigation Agency (NIA) has arrested the key accused, identified as Harwinder Singh in the Attari drug seizure case. Indian Customs had seized over 102 kilograms of heroin worth seven hundred crore rupees in April 2022. As per NIA investigations, the accused, a resident of Punjab, used to distribute drugs, handle cash and launder drug proceeds through banking as well as hawala channels. The case relates to a major conspiracy hatched by the international drug cartel to circulate drugs in India through various distributors and channelize the proceeds to the foreign-based masterminds.