As of a few weeks ago the embassies in Pakistan and Indian were not issuing visas and entry from the two countries were prohibited due to the "covid strain." I don't believe that's changed yet unfortunately.
Start at your embassies website. You'll need to submit an application online. once it's conditionally approved you mail your passport and documents to the embassy.
After you get your passport back, you need to apply for a certificate of entry online. You'll need health insurance, quarantine hotel booked, and flight booked.