So, today I went to Kallar Kahar, virtually, just to refresh the routes in my head. I am attaching a few pictures of my trip that may help the participants from Rawalpindi/Islamabad to reach there.
Let the journey begin... 
Islamabad Motorway Toll Plaza. I think everyone can reach here.
The first intersection that you may see. You have to stay on the left unless you don't want to go to Peshawar.
I don't know what's this. Saw it on Google. 
Anyhow, keep on following the road.
After crossing Soan River, Chakri etc. you'll finally reach Kallar Kahar without any left or right turn. On the left, you could see the Kallar Kahar refreshment area and Peacock Restaurant etc. Just keep on going straight but stay on the left lane.
Just when you'll cross the refreshment area, you can see the Kallar Kahar Interchange. Take the exit, pay the toll and make a wide U-turn and you'd be on the interchange bridge with Motorway beneath you.
Now, you are on the bridge and you have to go to the PTDC Hotel.
After crossing the bridge, just follow the red line to be on the road that will lead you to your destination.
Just 10 more minutes on the same road and you'll see "Laadli" somewhere parked on your right. Just stop!
I suppose I have guided you to the right route. Please correct me if I am wrong otherwise I won't be able to reach myself... Have a happy and safe journey.
