Bhot, tonda, and satta are three local fish traps made by the tribals. Bhot is cylindrical in shape while tonda and satta are conical. The bhot/cylindrical structure and shiba/conical funnel trap are made to fit together to form a complete trap.
The easily available bamboo is used as a raw material for the production of these traps. Traditionally, the thread was made from the fiber of a local leaf but nowadays nylon thread is used to stitch the structural elements of the traps using a kandi/bamboo needle. The construction is simple using locally available materials.
The fish traps are set in the bara, the space between the murul/heavy stones held within wooden stakes and bamboo lashings. The murul is part of khadan or a kind of boulder dam that is placed across the river. This structure raises the level of the river and diverts the water towards the bara where the traps are laid. In this way, the approaching fishes get trapped and the water flows out through the gaps. The caught fishes are stored in kirkinda/basket for transporting them to the village.
Koyta/machete, lakda/wooden piece, and kandi/bamboo needle are used in the production of bamboo fish traps.