Honestly, the entire urban belt from Islamabad to Delhi is one of the densest parts of the world, and further urbanizing as we speak. I think it will be the hardest hit, with the amount of concrete that is being poured and cars bought without regards to the local climate.
Reminds me of the infographic "over half the world lives in this circle", the circle containing countries in the region of China, India and ASEAN. All on or near equator. All countries in a position to develop rapidly short-term. India/Bangladesh/Pakistan/continental ASEAN corridors are prime waterwars candidates. The only saving grace of island ASEAN is they're geographically constrained from massive conflict and migration. There's a lot of zero-sum resource competition in the area which doesn't bode well.
