It was quite a long time ago in Pakistan that I had some information gathering for the on road diesel fuels in Pakistan, it basically was split in two. (via PPL - I worked on their data networks as a vendor)
the road use diesel was indeed ULSD - being brought in from KSA or other countries - while the off road/rail use one was still the old diesel that we all know and had more than 1000 ppm sulphur, I believe there was a mandate of its colour too but that was dropped due to reasons unknown.
There was a big hullaballoo about this on TV too (Dawn news etc, not geo, ary etc who are namak mirchi club of Pakistan).
Being Pakistan - everything flies, off road mixed with on road diesel - YEP.. chaaloo kaam zindabad.
Cant confirm now tho.