Aspects of this topic are discussed in the following places at Britannica.
...is available, crops such as wheat and cotton are grown. The Sukkur (Lloyd) Barrage on the Indus River, completed in 1932, irrigates the southern Thar region in Pakistan by means of canals, while the Gang Canal brings water from the Sutlej River to part of the northern region. The Rājasthān Canal irrigates a vast amount of land in that part of the Thar region in India. The canal...
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