Hi aspirant,

Yes it is truly possible that you can join Indian army even if you are from commerce background provided that you have Mathematics in your senior secondary education. Actually you would have to write the NDA examination and for which mathematics is a compulsory subject. I would also want to tell you that you are not eligible for Indian Air force or Navy because you do not have Physics as your subject. NDA examination is not very difficult you only need to practice the mathematics section well and other sections can be easily managed because they are of 10th level only. If you can manage at least 90-100 marks in mathematics section then it would not be very difficult to score around 260 marks in English and GAT section combined.

You can also join the Indian army after graduation through CDS examination but again you would only be eligible for Indian military services. You can prepare for CDS examination during your graduation so that you can perform well and easily get a place in Academy. In case you do not have Mathematics then you cannot join Indian army through this entrance examination but you can get into smaller posts through NCC and other small physical examinations.

hope it helps!