The online application for NDA 2 started on 15 May 2025 and closed on 4 June 2025. And the correction window opened for students on 5 June 2025 till 11 June 2025. Interested candidates can visit the official website of UPSC and register using the One Time Registration Portal (OTRP). You can make an account using your registered Email ID or phone number and then fill out the application form for NDA 2.