Thx a lot bro 
Main source of information is Google Earth. I already have detailed study of the landscapes and terrains in the North of Pakistan and rest is confirmed through pictures on internet or taken by me.
I took the jeep driver with me as he had never gone beyond Chilas 
Road is bad from Thakot till Sazin area.
Before Chilas it gets a bit better due to open places and straight roads.
After Chilas till Raikot bridge again very pathetic condition.
Raikot bridge till Atabad Lake - newly carpeted road with 7,8 work areas for tunnels / bridges / water crossings.
The road beyond Atabad Lake till Khunjrab is also carpeted.