To apply for Rashtriya Military School, visit the official RMS Admission Portal. First, register online and fill the application form with personal details, class preference, and exam center. Upload required documents like photo, signature, and mark sheets, then pay the application fee. After submission, download the confirmation for records. Admission is through the RMS Common Entrance Test (CET), followed by an interview and medical exam. Final merit and school allotment are published before the academic session starts.