Is Karjiang higher than Istor-o-Nal?
Karjiang: Karjiang is a mountain in Tibet, located near the Bhutan–China border. Karjiang:  The highest peak of the Karjiang group is Karjiang I or Karjiang South, with an elevation of 7221 m ; it remains unclimbed. Istor-o-Nal: Istor-o-Nal or इस्तोर-ओ-नल is the third highest mountain in the Hindu Kush, in the Chitral District of the North-West Frontier Province of Pakistan.
i don't know