Police seized an oil tanker while ganja was being trafficked by it from Mathili in Malkangiri district to Chhattisgarh on Thursday.
Acting on a tipoff, the police intercepted the tanker at the Malkangiri bus-stand and found nearly 100 sacks of ganja in it. The value of the seized contraband was estimated to be Rs 1 crore.
The police arrested three persons allegedly involved in the incident.
The cops also seized the hundred small sacks of ganja from the container.
Earlier, the police had held some Kaudias while they were transporting ganja from Mathili.