coming from motorway get your exit from thokar niaz baig interchange following the same road you reach on a signal (i.e thokar niaz baig signal, the straight road is multan road, the one one on right goes to raiwind). Follow the right turn and then left turn immediately after another signal. The road will lead you to canal road. Stick to that road, you'll first cross Doctors hospital underpass, then jinnah hospital under pass then comes the punjab university / Sheikh Zaid Hospital underpass. from the signal turn left and you'll be driving by the P.U, the main gate will be on your left after a few meters.
hope this information helps.