12th pass youth can join the army through NDA (National Defence Academy) examination conducted by UPSC (Union Public Service Commission). After 12th class in NDA, you can apply for the NDA entrance exam. If you are successful, you have to undergo a three-year training program.12th (PCM) passed youth can join the army under Technical Entry Scheme (TES). https://g.co/kgs/aJNrsAq