The report describes a two-way narcotics-finance corridor involving Myanmar and India’s Northeast. Which mechanism was specifically mentioned?

hawala settlement through border-town accounts

The ED described drugs moving through the Champhai–Zokhawthar sector and proceeds returning through hawala accounts; one counter recorded 2,947 transfers. B, C and D are not the reported mechanism. B is incorrect: barter through oceanic shipping only does not satisfy the stated fact or is a different institution/concept. C is incorrect: official central-bank remittances does not satisfy the stated fact or is a different institution/concept. D is incorrect: cryptocurrency mining in Antarctica does not satisfy the stated fact or is a different institution/concept.