I have been listening to all sides on this issue of IWT for several days, including international experts and there is another perspective to this as well. First of all, even if India builds reservoirs to stop complete water from Pakistan, India can only ever block upto 35% of Pakistani water. As that much water originates and flows through India before adding into our own sources of water and ice. We get 65% of water form mountains, rainfall and snowfall within our own Northern Areas, or which originate too close to our borders to be blocked. But we have no capacity to store it and it just wastes away into the Ocean. Thus we keep relying on all year around natural flow of rivers to sustain our agriculture. Unlike many others including China who have built up capacities to store as much water as they can, from within their own territories, especially.
The water wars ARE going to happen. There is no way around it. Indian states are infighting for water already. Two years back, 3 of the Indian states had actual fights between their police forces at their borders, due to water sharing. So India will also have no choice but to do something about it.
I think its more important for us to build effective Dams on our side. If we do, we won't have to rely on India anyway. Our own Ice, rain and other sources will fill our reservoirs enough for our needs, by the time India finishes any projects on their side. For another 5 - 8 years we will really not face any meaningful issues from India on this matter, but if we ignore this now and do not start building Dams of our own, then yes ! We will ! So its also important for us to stop making this an issue of our ego.
Lets face the reality. We can either go to war with India so neither they, nor we store any water. Or we can also take responsibility for ourselves and start building as many dams to store enough of the water that originates within our borders and I hope our politicians and establishment are aware of this. If not then we also need to take responsibility and push our politicians to take responsibility and take care of this matter before India builds up their own reservoir capacities. China can easily help us o this matter and we can take care of it all.