Concept:
- Sustainability means meeting present needs in a way that does not destroy the ability of the future to meet its own.
- For a water project this shows up as reliable supply, better use of a scarce resource, and protection of livelihoods over the long term.
Step 1: It makes the water supply reliable instead of seasonal.
The source says that assured water supply will soon make this area
drought proof. Storing monsoon water and releasing it through the year turns an uncertain resource into a dependable one.
Step 2: It puts water where it is scarcest.
The project carries water to the strategic desert districts of
Barmer and Jalore in Rajasthan and to the tribal hilly tract of Maharashtra through lift. Land that could not support settled farming is brought into use.
Step 3: It secures livelihoods for the long term.
With irrigation reaching 18.45 lakh hectare across 3112 villages in 15 districts of Gujarat, farming families are no longer forced to migrate after a failed monsoon. A settled livelihood is itself a sustainable one.
Step 4: It uses one structure to serve many purposes.
A single multi-purpose project supplies irrigation, drinking water and power, instead of separate schemes each taking its own land and materials. This is a more economical use of resources.
Final Answer: The project promotes sustainability by converting an uncertain monsoon into an assured year-round supply, by carrying water to desert and tribal areas that had none, by securing farming livelihoods against drought, and by meeting several needs through one structure.