Hello dear student, so as you have asked for the difference between IMA which is Indian military academy and OTA which is officers training academy. There is a huge difference between these two as Indian military academy says the Moto which is valour and wisdom while the OTA which is officers training academy motto is serve with honour.

Now in Indian military academy cadets go through a rigorous training approximately for 1 year and after successfully completing the training gc gets into the army as a permanent commissioned officer.

Why now in officers training academy it is well equipped to train officers for counter insurgency operations giving a real jungle lane shooting range and grenade lobbing area.

I hope this helps

Thank you