Hi, You have been making lots of duplicated sections of highways by placing a road on top of another road.  This will disrupt routing. 

There have been a huge number of edits to remove these duplicate sections of highway. But we now see that you are continuing to make the duplications. Please have a look here:- https://tools.geofabrik.de/osmi/?view=routing&lon=67.22581&lat=36.75090&zoom=13&baselayer=Geofabrik%20Standard&overlays=duplicated_edges%2Cduplicated_edges%2Cduplicated_edges_areas    These are the ones now being corrected. as well as joining many unjoined overlapping highways. Could you please try not to make duplicate sections of highways.

Regards Bernard.