RE: My Upcoming Solo Travel to Himalaya mountains in India in 10 days but I am having mixed feeling

If you want to travel by the bus, then you don't need the permit. you need it only when you have your own private vehicle.
I am trying to get that other part of information about bus from Kaza to Kibber and Dhankar, once I get, I will let you know. Kibber is only about 10 kms from Kaza, but Dhankar is somewhere near to 40 km, but road is relatively good after Kaza.