First of all, in order to ...

First of all, in order to invest such amount of money, one need to be sure about the following:

1. source of funds/availability of funds

2. source of water/availability of water for sharing, which means taking water away from areas of surplus to areas of deficit. This means, there has to a place from where water can be diverted without much social, ecological, environmental problems

3. Technical as well as financial/socio-economic feasibility of the project or at least some sections of the project

4. Environmental Impacts of the project, which will certainly have both positive and negative impacts

5. Environmental Issues are generally created on the basis of some facts which are often linked to various other issues including politics, religion, history, culture and tradition, local values which generally have their meeting points but the identification of the actual meeting point requires rigorous exercise

But, to me, the project looks good and worth implementing without loosing much time - start from the best section