I travelled at the route you mentioned abt 2 weeks go, road from jhang to multan is fine n trouble free.
The only issue with this route is that it is very busy from fsd to jhang plus some patches under construction.
Better option is isd-pindi bhattian- chinoit - jhang - kabirwala - multan.
If the M3 is open beyond fsd then i dont know if that is a better option than chiniot one..
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