Explanation:

System of equal distribution of canal water is an important aspect of irrigation management. It ensures that every farmer in the command area of the outlet gets an equal share of water. This system is achieved through various methods like Waranbandi, Naranballi, and Hissabandi.

Waranbandi:
Waranbandi is a system of water distribution where the water is distributed equally among the farmers in the command area of the outlet. In this system, the total available water is divided into equal parts based on the number of farmers in the area. Each farmer is then given a specific time to irrigate their fields. The time is calculated based on the size of the land and the amount of water required for irrigation.

Naranballi:
Naranballi is another system of water distribution where the water is distributed based on the size of the land and the amount of water required for irrigation. In this system, the available water is divided into equal parts based on the size of the land owned by the farmers. The farmers with larger land holdings get more water than the farmers with smaller land holdings.

Hissabandi:
Hissabandi is a system of water distribution where the water is distributed based on the amount of water required for irrigation. In this system, the available water is distributed among the farmers based on the amount of water required for irrigation. The farmers who require more water get more water than the farmers who require less water.

Conclusion:
Out of the above three systems of water distribution, Waranbandi ensures equal distribution of canal water in the command area of the outlet. This is achieved by dividing the total available water into equal parts and giving each farmer a specific time to irrigate their fields. This system ensures that every farmer in the command area gets an equal share of water and is thus fair to all.