A Computer Number is a unique identity number which is issued to all candidates wishing to give DGCA Theory Exams. This number is valid for lifetime and doesn't expire. In this post, I'll walk you through the entire process of applying for a computer number which will help you make the process smooth and hassle free. Assumptions : There are a lot of different variables and parameters involved for Computer Number and these variables change the process for applying for CN. Hence, with my limited experience, I am making the following assumptions : 1. You have cleared your 10+2 with Physics and Math from recognized Board or University in India. 2. You haven't started your flying yet. 3. You are an Indian National. Steps to Apply Download Pariksha User Manual from Here . Read this Manual thoroughly. Done? Excellent. Read it once again. Read it 10 times. Get your Board Verification Certificate (BVC) : BVC is a Certificate issued by your education board stating that ...