Already discussed earlier regarding Chinese potential "control" (and you got owned):
https://defence.pk/pdf/threads/chin...art-of-arunachal-pradesh.481191/#post-9260717
And no, we don't hold any of the Brahmaputra back from BD (like say farakka on the ganges)....nor plan to (given the floodplain mechanics for construction).
If you want to open your mouth, at least do some basic research on the matter first. The very video you posted is not about brahmaputra at all lol (ouch!).
I have already mentioned the farakka water issue on this thread:
https://defence.pk/pdf/threads/bang...ted-water-after-farakkah.482371/#post-9279689
Not one BD person has responded past that (because they know facts are not on their side).
So like I said no smart BD person (past the pavlovian china cheerleaders - and even they probably didnt understand or ignored what you implied) would want the BD military to blow up an Indian dam near their border in any hypothetical conflict. They actually would want India itself not to open up the sluice gates because that would be really bad news downstream.
That all has nothing to do with how much India "controls" of the Ganges river.
BD (in a conflict - which has next to 0 chance of happening in the first place) would want the dam to stay functional and not open up the reservoir for a surge. What do you think destroying such dam would do regarding that? Not to mention limited payload chinese drones would be a pretty awful way of going about doing that.
You simply are not capable of good strategic and military analysis. Please tell your handlers to send a tier A chicom troll next time, you are like tier C or D at best. Thanks.