At least 13 persons were carrying about 3.5 quintals of ganja in the forest near Sulurkonda in Orkel police station when police intercepted and detained them.
While three of them were caught and the whole stock of ganja seized, the rest fled the scene under the cover of thick fog and darkness.
The ganja, valued at Rs 5,000 per kg, was being taken from Nabarangpur district to neighbouring Chhattishgarh trough the area when police intercepted it, Superintendent of Police, Malkangiri, Akhilesh Singh said.