Hello Athuldev,

There is no such reservation criteria.The admission is based on merit secured in written exam and interview.There are 220 seats in total in 6 colleges.Only female candidates are eligible.Therefore there no reservation state wise, admission in purely based on merit.You can check the detailed information by clicking the link below

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

I hope this is helpful to you.