from what I heard, Some armed miscreants belonging to the Meitei village defense force were apprehended by the army with local police, however, the local women folks objected to their arrest as they are the one who is guarding the village from the Kuki attacks. Women are asking why the law is only against the meitei not the Kukis. The locals barricaded the road and the army used blank fire to diverse the crowd. IMHO the army acted in a very mature way and no lethal force was used but the optic of the car being run over has played very negatively here
if you see this video link Kuki here aimed a gun and jumped over the MPV but no action was taken
They even aimed a primitive mortar called pippe toward the troop.
News sources are saying these militants are responsible for attack on the CRPF, hence they got arrested.
To your point on discriminatory behaviour vs. Meiteis and Kukis, previously Army seemed to give up and submit to the mob, either Meitei or Kuki (lot of videos on the internet).
This time, and I will say the first time, it seems ground-rules changed, and Army looks desperate (getting into the harm's way, removing barricades, quarelling with civilians, firing blanks).
But still, I will say nothing is harmed for lost. If anyone arrested, will likely get released easily if not found guilty of murder of our soldiers. It is very difficult to control tempers when such mob rule occurs, and I find relief both sides excercised utmost restraint.