hi,

see sainik school conducts entrance test named,  AISSEE (all india sainik school entrance examination) to admit in class 6 and class 9/. however every year cutoff score changes and it based on some of the determining factors like number of applicants, questions difficulty level , seat matrix, students category and so on. however you may follow the below link to know about previous years cutoff:

https://school.careers360.com/articles/sainik-school-cut-off-marks