What are the medical and physical standards for RRB NTPC posts?

Medical standards for RRB NTPC vary by post category and are classified under medical categories (A1, A2, A3, B1, B2, C1, C2) as per Indian Railways Medical Manual.

- Safety-category posts (e.g., Station Master, Traffic Assistant, Goods Guard): Require Medical Category A1/A2 (strict vision, hearing, and physical fitness standards)
- Non-safety posts (e.g., Junior Clerk, Accounts Assistant): Usually require Medical Category B1/B2 or C1

Key requirements:
- Distant vision: 6/9, 6/9 (without glasses) for A1; 6/9, 6/12 (with or without glasses) for B1
- No color blindness for operational posts
- Candidates must pass the medical examination conducted by Railway Medical Authorities

Medical disqualification leads to ineligibility even after clearing all exam stages.