No, based on the latest eligibility criteria (as of April 22, 2024) for the NDA exam, a spectacle power of -2.5 would likely disqualify you from appearing for the exam in any group.  The NDA medical standards specify a minimum distant vision requirement of 6/6 in one eye and 6/9 in the other eye, correctable to 6/6 only for hypermetropia.Since your spectacle power is -2.5 , it exceeds the permissible limit for correctable vision.