From the available sources, I've pieced together what may have happened.
1. Yesterday, IA tried to pull a fast one and "Take back their land" using no weapons within the valley.
2. The PLA caught them in their tracks and told them to go back immediately.
3. IA did not comply and insisted that this is Indian land.
4. Both sides got physical like they normally do by blocking and barging each other using their bodies.
5. IA took it a step further by MAYBE throwing a punch or 2.
6. PLA turned into kung fu mode.
7. Battle got very physical when PLA soldiers got injured as they were outnumbered in that specific arena.
8. PLA Re-reinforcements arrived.
9. IA retreated....but in the turmoil, PLA captured many IA soldiers including the commanding officer.
10. Having assessed the injuries to their fellow soldiers, the PLA decided to teach IA a lesson and battered many IA soldiers and tore them a new a$$hole.
11. IA soldiers at the bottom of the valley fired a few warning rounds....at which point PLA threw the remaining 30+ soldiers down the mountain into the valley for the IA to collect.
12. Given that the valleys are hundreds of meters in height, this resulted in the death of IA soldiers.
13. IA retreated back as they failed their mission miserably.
In the coming days, I wouldn't be surprised if PLA push further in to Ladakh in -order to create a buffer zone.
Watch this space, and have the pop-corn ready