A party of 12 had permission to climb Nanda Devi East, and these 8 split off at the base camp to go climb the unnamed peak, and the 4 who climbed Nanda Devi did not summit. A failure all around, aside from those 4 being alive.
It sounds as if the group of 8 (which included the expedition leader) intended to climb the unnamed peak all along and knew they would not receive permission.
Interesting.