eCOM.pk offers PK domain name registration in Pakistan. There are no restrictions, everyone can register a .PK domain name on a first come, first served basis.
A PK domain name targets Pakistan, if you’re looking to target Pakistan, a PK domain name will localize your website. PK Domains are intended for businesses and individuals interested in expanding their brand or service in Pakistan. Registering a local domain like PK means your site will rank higher in local search results as its content will be relevant to Pakistani users.
.PK Domain Policy
.PK is the TLD for Pakistan, and is regulated by the pknic Registry (pknic.net.pk)
PKNIC is responsible for the administration of the .PK domain name space, DNS for the Root-Servers as well as registration & maintenance of all .PK domains. A detailed and updated pknic registration policy is available here