The correct answer is: Cast nets, gill nets, traps, and hand-lining.
Cast nets are a type of fishing net that is thrown into the water to catch fish. They are made of a lightweight material, such as nylon, and are usually circular in shape. When the net is thrown, it spreads out and traps the fish inside.
Gill nets are a type of fishing net that is made of a fine mesh. They are placed in the water vertically, and fish that swim into the net become entangled in the mesh and cannot escape.
Traps are a type of fishing device that is used to catch fish. They are made of a variety of materials, such as wood, bamboo, and metal. Traps are usually baited, and fish that enter the trap are unable to escape.
Hand-lining is a type of fishing method that is used to catch fish by hand. A line is attached to a hook, and the fish is caught by hand when it bites the hook.
All of these methods are traditional fishing methods that are used in Manipur.