Pakistan has one of the largest man-made canal systems in the world providing irrigation facilities to 48 million acres.
[2] Main Canal: A principal channel off-taking directly from a river or reservoir which has discharge capacity of above 25 cubic meter/sec (cumecs) is called Main Canal or Main Line.
They drive water from the river/ reservoir through head regulator and feed it to Branch Canals and Major distributaries.
Branch Canal: They take-off water from Main Canal and feed the Major and Minor distributaries.
Link Canal: These Canals are meant to Transfer Water of three Western Rivers, namely Chenab, Jhelum and Indus to the canals dependent on the three Eastern Rivers, namely Sutlej, Beas and Ravi.