Hello aspirant,

You can join the Military Nursing Service (MNS) after earning a B.Sc. in nursing. You can join the Armed Forces Medical Services as a Commissioned Nursing Officer with Short Service or a Commissioned Nursing Officer with Permanent Service. A written test, followed by an interview and a medical exam, will be used to determine your selection.

For more information you can visit the link given below.

https://medicine.careers360.com/articles/indian-army-bsc-nursing

Thank you

Hope this information helps you.