I am not sure about the legitimacy of this news as, from the sentence (bad grammar) it self, it doesn't look like a legit reporting piece. If this happened, I sure don't condemn the act.

Agreed it is a satire news portal but the quality of English is pathetic to say the least.

I beleive the photo is not of Bagmati river. Looking at the gerrenary at both banks and amount of water

Totally FAKE and MISLEADING. There is no such place around bagmati River. # Just Propaganda