Abstract
In this study the greater Ganga Basin is decomposed by political units for analysis instead of by hydraulic sub-basins. This method is more logical because water-resources-use planning is under the individual state jurisdiction but the Central Government is responsible for meeting the low flow requirement at Farakka. Maximisation of national benefits is taken in terms of total area irrigated. The solution technique proposed is an iterative procedure. The problem is analysed under two schemes (i) flow quota scheme and (ii) resource allocation scheme. These schemes are worked out by three algorithms. The first algorithm requires that minimum flow at any point in the Ganga should be greater than the sum of the minimum quota fixed by the central Government for all the states above that point. Under algorithm two, water that leaves an upstream state may be used by a downstream neighbour provided that this neighbour allows a flow greater or equal to the sum of its and all the upstream states quota to pass into the next state. In algorithm three the restriction of algorithm two has been lifted. The merits and demerits of each algorithm are discussed.
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