All such mobile device users, having more than one SIM/IMEI slot, where one IMEI slot is registered and the second is not, are advised to submit requests to the Pakistan Telecommunication Authority (PTA) before August 31, 2019 for registration.
Users can email at typeapproval@pta.gov.pk with details, including screenshot of device showing all programmed IMEI, screenshot of device box showing IMEI(s), copy of CNIC and contact details to get such devices registered.
The PTA will evaluate all such requests, and validated cases will be registered accordingly.
After August 30, 2019 such SIM slots will not be registered.
The status of a mobile device can be checked by dialing *#06# and SMS each 15 digit IMEI to 8484. The PTA has advised the mobile device users to have all IMEIs (dual SIM) of their mobile devices registered
Source: https://nation.com.pk/18-Aug-2019/mobile-users-asked-to-get-imei-slots-registered