AoA All. Application process is online and very easy. Go to joinpaknavy dot gov dot pk and Select your branch and after that screen will automatically show criteria. You've to be careful that while applying select 0 in from of marks and total marks of any irrelevant field.
After that your registration will be complete. NAVY will take 2-3 days and after that you can download the slip by putting your NIC number.
Take printout of slip, attach PASSPORT SIZE PIC, TAKE 300RS cash and original CNIC to centre on the test date which is visible on your roll number slip.
After you clear test, experience section and its verification will come after that.