Just spray the protesting group with water and drop a live electricity wire in the puddle and call it an accident. No need for pava and bava crap guns, we don't want to open garam masaala shop in Kashmir with chili powder pellets.
Just take a truck filled with pig heads and start scattering the heads everywhere, no protester will even come close. Mount a pig head on every CRPF bunker. Problem solved.