How to Fill NDA Application Form – Stepwise Guide The National Defence Academy (NDA) exam is the gateway for young aspirants who dream of joining the Indian Army, Navy, and Air Force. Every year, thousands of candidates apply for this prestigious examination conducted by the Union Public Service Commission (UPSC). To make sure you don’t face any difficulties, here is a step-by-step guide on how to fill the NDA application form. At Manasa Defence Academy, we provide complete guidance to students — from application filling, exam preparation, physical training, and SSB interview coaching — ensuring the best chances of success. Stepwise Guide to Fill NDA Application Form Step 1: Visit the Official Website Go to the UPSC official website: www.upsc.gov.in Click on "Apply Online" for NDA Examination. Step 2: Registration Part-I Fill in your basic details: Candidate’s Name (as per 10th certificate) Date of Birth Gender Nationality Email ID and Mobile Number Choose your preferred branch (Army, Navy, Air Force).