How to Prepare for the NDA exam After Class 12th: The Union Public Service Commission (UPSC) holds the National Defence Academy (NDA) exam, which is a very tough test in India for applicants who want to join the Indian army. This test, which is given twice a year, is the only way to join the Indian Armed Forces. https://warriorsdefenceacademy.com/how-to-prepare-for-the-nda-exam-after-class-12th/