I'm not sure about the majority of polling stations, but there was blatant rigging in my constituency (NA-125). Saad Rafique of PMLn was twice caught red handed, and after being removed by army from one booth (where he was there for 90 minutes), he then came into our booth in female side, where he openly conducted rigging. My mom, personally scolded him off.
I'm definitely not sure about the support PTI had in other parts of Lahore, but DHA/Cantt was definitely all out for Imran Khan.
The result does not sink in. As it were not only the youth, but rest of the citizens were also gunning for PTI. It's a very educated block to which we belong, and it was epitomized by IK's support.