UPSC NDA 2020 Exam on 6th September & Registration. As per the revised calendar , a common examination for both NDA & NA Exam ( I ) & ( II ) 2020 will be held on 6th September 2020 according to the official notification released . This year UPSC has merged both the NDA Exams .UPSC Conducts NDA Exam twice every year for admission to the Army , Navy ,and Airforce  wings of the National Defence Academy. The exam was postponed due to Covid -19 pandemic. NDA Application form 2020 – UPSC has released the application form of NDA II