Your route will be like this
Islamabad/Pindi---Dir (10---12 Hrs)---Thal (6---7 Hrs drive)---Jahandri (1 Hr drive)----Jahaz Banda (4---5 Hrs trek)---Utror (1 day trek)---Kalaam (1 Hr drive)
If you reach " Thall" please please must visit " Kumraat ", which is 1 hour drive from Thall and much much beautiful even then Kalaam.
We have done this trek via Jahaz Banda where accomodation is available but it is not a jeepable/bike trek, you can go to Utror from Thall via road by ignoring Jahaz Banda.
Very very beautiful destination and again do remember " Kumraat "