How can I become an officer in Indian Army?

For joining Indian Army, you have many ways. After class 12th, you can apply for NDA TES entries. After graduation, you can apply for CDSE, NCC, UES, TGC, ACC, SCO, PCSl. In all above case, you have to clear SSB interview to get selected. Also, eligibility for all entries is different. Check it with

You can join after class 12 through NDA and after graduation through CDSE and OTA. But, I request you to keep in mind the type of commission you want (PC or SSC). Both has its own advantage and disadvantage. For actual career in armed force, you should join as PC.