1. Download challan form from the downloads section of online.pnc.org.pk . The exact link of challan form is: http://online.pnc.org.pk/RevisedChallan.pdf
2. Submit fee in any Habib Bank branch and get it stamped from the bank.
3. Scan the challan copy and upload it online
Note: you can easily scan challan form using your cellphone which has more than 5 megapixels camera. You can use CamScanner app to scan challan form.