Tsering recons these caves could have stored food and supplies to last a year.
So in theory, Guge could have held out for a while.
Apparently, these secret passages also allowed the besieged people of Guge access to water.
Some passages led to an exit near the Sutlej River.
With food and water available, Tsaparang held out for close to a month before the Ladahkis stepped out the offensive.
By now, the invaders had taken over the unprotected lower sections of the citadel and have gained a crucial bargaining chip in the process: thousands of Guge prisoners.
Halfway up the citadel stands a very peculiar stone partition, unlike anything else found in Tsaparang.
The wall is very interesting.
It's built of stone whereby most of the other buildings were built primarily of rammed earth or mud brick.
It doesn't have any obvious habitational function.
It doesn't have any obvious defensive function.
So why's that wall there?
If storming the citadel through the tunnels was impossible, then the only other option would be to build a siege tower.
And by the most ruthless means, on the backs of captured Guge prisoners.
The royal precinct was virtually unassailable.
The Ladahki army reached the shelf beneath the sheer summit.
They were stuck here for sometime around one month, so they began to build a siege tower with pressed Guge labor.
They had to bring stones from a black mountain on the far side of the Sutlej River.