Kotabagh is already in mossy ruins and cannot be saved forever. Even as Nanga would leave Parmala behind, she never has a future to die for and never will have a bright future to be translated into. Life is technically near impossible for children like her, feeding on lots of crap-laden diseased things, as usually admitted by Tota the tanner when he grudgingly revealed the truth.
As Parmala alone ate the privates of the Yeti that killed Nanga's whole family for a long while, She started to gain more diseases and in the next few weeks, will die slowly. She is then going to decompose within the soily ground of the Himalayan foothills. Her mother Refi also died a week before she did, after eating the same killer Yeti's eyes, something potentially full of viruses and bacteria that are bad for human health.