3 persons have also been arrested in connection with the seizure.
The contraband was seized during a routine checking at Tangjeng near Ibudhou temple in Bishnupur district.
The brown sugar consignment was being smuggled by a person in soap cases in a large backpack.
The three arrested persons have been identified as Thangkohsat Guite (34), Thangsei Guite (41) and Warepam Ramesh Singh (46).
Meanwhile, the seized contraband and the three arrested persons have been handed over to the Kumbi Police Station.
A case has also been registered with the Kumbi Police Station.