Go to das.hec.gov.pk and create your profile, submit information pertaining to your academics (passing year, CGPA) etc. Then once you have filled the form, take a print out and send the form along with

1) Original Degree(s)
2) Original Transcript (s)
3) Inter certificate
4) Inter transcript
5) Matric Certificate
6) Matric marksheet

Through courier it takes approx. 15 days from the day of dispatch to receival of verified degrees. All documentation required by HEC is original and HEC charges 800rs per document verification. Furthermore, Your Inter/Matric/O-A Levels degree or transcrips are NOT verified by HEC and they just require that for records.

And yes, they also require a set of photocopies of all the aforementioned documents.