Those countries you mention have all offered condolences to India. They haven't supported India in taking any action against Pakistan, nor have they supported India's baseless allegation regarding Pakistani involvement.
Nothing material has happened regarding water. There is no water war; the treaty is in "abeyance". Even Indian outlets reckon that if India was to do anything Pakistan can challenge it in court and will win.
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But what national security interests are likely to be fulfilled by violating the treaty? First of all, India can only influence a
miniscule amount of the water flow into Pakistan right now, most of it is from glacial melt, snow melt, and monsoon rains anyway. To do more, India would have to spend thousands of crores to build large storage dams over a period of decades, for no set purpose except to threaten Pakistan. For that kind of money, India could easily overhaul its military capabilities instead, and in much quicker time.
More importantly, the restriction of water to another country is a war crime, and if India starts building the infrastructure to commit war crimes it paints itself as a villain in a region where it is fighting a desperate rearguard action against Chinese domination. As a downstream riparian to China, it will hand all the cards to its northern neighbour if China decides it will build such dams too, something it has both the financial wherewithal to do, and the engineering capability to do so much quicker than India. "
This is not the first time that the Modi regime has tried to use legally dubious means vis-à-vis the treaty.
thewire.in
and here
"The IWT cannot be altered unilaterally. Article XII stipulates that its provisions “may from time to time be modified by a duly ratified treaty concluded for that purpose between the two Governments.” It further clarifies that the treaty can only be terminated through a “duly ratified treaty” agreed upon by both states.
The term “hold in abeyance,” as used by India in its letter to Pakistan, is neither recognised in international law nor mentioned in the Vienna Convention on the Law of Treaties (VCLT), 1969, the principal treaty governing agreements between states. “The VCLT does not use the word ‘abeyance’; it uses the term ‘suspension,’ which allows a country to suspend the operation of an entire treaty or a part of it. Suspension is distinct from termination. I believe that when India used the word ‘abeyance,’
it intended to mean ‘suspension’ rather than termination of the IWT,” Dr. Prabhash Ranjan, professor at Jindal Global Law School, told The Hindu."
India's Secretary of Water Resources puts 1960 Indus Waters Treaty on hold, sparking tensions with Pakistan.
www.thehindu.com
India is not even using terrorism as its excuse for putting the treaty into abeyance. It will cite demographic changes as it has done in the past
So this is the reality infront of you. You are letting your imagination run wild with theories of burnt fuel, and bollywood fantasies of Modi swooping in for revenge when the time is right. Unfortunately in the real world we have to deal with facts and not your imagination brother.