Dear aspirant !

Hope you are doing great ! If you really want to become army officer then go for it ,if you have spectacles then for your kind information I would like to say that in nda till -2.5 is allowed ,I hope you will be less than that number .But one problem will also there because in nda maths portion contain lot of marks 300 marks ,and it is the math of class 11 and 12 standard so it will be hard for you to cover it as you are a biology student ,so to crack the exam is hard for you ,however if you believe that you can cover everything then surely go for it otherwise prepare for your neet exam

Hope it helps you !!

Thanking you !!

Have a great day!!