The eligibility criteria for the RRB NTPC (Railway Recruitment Board Non-Technical Popular Categories) exam are based on age limit, educational qualifications, and nationality. Here's a detailed breakdown:

1. Nationality

A candidate must be:

• An Indian citizen, or
• A subject of Nepal or Bhutan, or
• A Tibetan refugee who came to India before January 1, 1962, with the intention of settling permanently, or
• A person of Indian origin who has migrated from Pakistan, Burma, Sri Lanka, East African countries (Kenya, Uganda, Tanzania, etc.), Zambia, Malawi, Zaire, Ethiopia, or Vietnam intending to settle permanently in India.

2. Age Limit

The age requirements depend on the level of the post:

For Undergraduate Level Posts (10+2 Qualification)

• Minimum Age: 18 years
• Maximum Age: 30 years

For Graduate Level Posts

• Minimum Age: 18 years
• Maximum Age: 33 years

Age Relaxation

Age relaxation is provided for reserved categories as per government norms:

• OBC (Non-Creamy Layer): +3 years
• SC/ST: +5 years

Persons with Disabilities (PwD):

• General: +10 years
• OBC: +13 years
• SC/ST: +15 years
• Ex-Servicemen: Relaxation as per service rendered in the armed forces plus 3 years.
• Additional relaxations for widows, divorced women, and others as per RRB rules.

3. Educational Qualification

The required educational qualification depends on the post:

For Undergraduate Level Posts

• Junior Clerk cum Typist: 10+2 (Intermediate) or equivalent, with typing proficiency.
• Accounts Clerk cum Typist: 10+2 or equivalent, with typing proficiency.
• Junior Time Keeper: 10+2 or equivalent, with typing proficiency.
• Train Clerk: 10+2 or equivalent.
• Commercial cum Ticket Clerk: 10+2 or equivalent.

For Graduate Level Posts

• Traffic Assistant: A university degree or equivalent.
• Goods Guard: A university degree or equivalent.
• Senior Commercial cum Ticket Clerk: A university degree or equivalent.
• Senior Clerk cum Typist: A university degree or equivalent, with typing proficiency.
• Junior Accounts Assistant cum Typist: A university degree or equivalent, with typing proficiency.
• Senior Time Keeper: A university degree or equivalent, with typing proficiency.
• Commercial Apprentice: A university degree or equivalent.
• Station Master: A university degree or equivalent.

4. Medical Fitness

Candidates must meet the required medical standards for the post they apply for. For example:

• Vision standards vary from A-2 (for Station Master, Traffic Assistant) to C-2 (for Clerk posts).
• No color blindness is allowed for certain posts like Goods Guard and Station Master.

5. Other Key Points

• Typing proficiency tests may be conducted for certain posts requiring typing skills.
• Candidates awaiting their final results are not eligible to apply.