Singh picked up his submachine gun and charged up alone toward the AZN position. The rest of his section (10 or so men) provided covering fire. He miraculously made it all the way up the path while bellowing "Raja Ramchandra Ki Jai" without being killed -- despite having grenade blasts tear off most of his clothes and being the only (mostly naked, mustachioed, screaming) target on a one-man-wide path. At the top of the rocky escarpment, he jumped into a machine-gun nest and bayoneted all the occupants.
We are assuming the mustache acted as a sort of battering ram.
When Singh realized that all the men who had been covering him now lay dead or dying, he reached a plane of anger as yet unrecognized by our pitiful Western emotions. He was more filled with murder than ever, but tragically, he had just run out of bullets. And that gave him pause ... for all of a few seconds, before he started hurling grenades and charging into enemy trenches again. He bayoneted two more occupants before a grenade explosion tore off half his face, which he found mildly inconvenient at best: Not only did it not stop him, it actually seemed to egg him on.
Now bleeding from multiple shrapnel wounds and half blind with his own blood, he charged the second machine-gun nest and threw a grenade into it, just as a bullet struck him in the head and killed him. As he fell, the grenade exploded, taking out the nest and winning the battle. He died as he lived: a hero.
And a bloody, half-naked, Dali-mustachioed, screaming, faceless personification of rage.