No elections are fair!! Not even in the developed countries. But, 10, 20% anomalies or even contested seats don't mean the entire system, everyone in power, the judiciary, the election commission, the police and the military, everyone is corrupt and paid!!!!
Democracy means, that if you know that the other party will take one seat over you, you shouldn't throw "rigging" tantrums like a 2 year old child (which in PMLN vs. PTI's case is well known that PMLN will always get extra seats, if you think with reality in mind). So there is no need to upset the entire country and the system.
You should accept the facts and focus on the next elections, present a legal case where you can, and start to PEACEFULLY educate people, with respect for the country, its elected leaders and institutions. THAT is how you bring about a change. If the violence, the verbal assault, the threats could help, IK would already be a PM today from every place. But the reality is that people have woken up and are rejecting the negative and violent nature of IK's campaign.
He needs to start showing work and progress, the time to make crazy speeches, threats and all is over. If he doesn't act smart, he may get less than 5% votes from Punjab and Sindh the next time. His claims and dreams have hit the solid rock bottom a couple of days ago.
See the advise above for IK. You all think I am a big NS fan. That's not true, I am a Pakistan's fan and a system's fan. I want Pakistan to grow and becomes stronger economically, tolerance wise and in all other aspects. I support the system as it is making head-ways for the growth of Pakistan. Today NS is running it, but I'd be saying the SAME stuff if IK or someone else was running it, under taking the same amount of work that NS's team has!