Simply verify their CNIC by sending an SMS to 7000.

Write CNIC Number without dashes and send it to 7000. In response you will get name and father’s name of that particular CNIC number holder (in urdu fonts).
Example: write 3740149922830 and send to 7000
Charges: Rs. 10 plus tax per Message (Around Rs. 12 including taxes)
At the moment this service is available for Mobilink, Telenor and Warid customers while Ufone and Zong are in process to get listed.
One may think that this is a privacy loop hole, however, as it does not provide any contact details of the CNIC holder and only reveals the name and father’s name – so it is acceptable and helpful in many means.
Talking about benefits, this service will really help the public in there general as well as special matters as you can easily verify someone’s details to check the scam or fake ones, these credentials can really help out in business deals as well as personal contracts where you need to be sure about the real person.
This service will also be helpful to law-enforcement agencies as they may be able to get more details as compared to public because there is another special number for them. They can get CNIC information by sending the number at 7001.
Subscribers will get details through cellular companies which would collect data in real time communication from NADRA National Data Warehouse. This is thought be a secure data transfer as service numbers are labeled as “Special Numbers”.
NADRA is also supporting law-enforcement agencies and govt. to implement and cope up with prevailing law and order situation. This step is regarded as a good initiative as it will support telecom infrastructure as a big advancement and will led others to bring these kinda changes and revolutions. A lot of thing are on their way but still a BIG job is to be done.