EDUCATIONAL QUALIFICATION:
  Group B posts (Station Master, Goods Guard): bachelor's degree
  Group C posts (Clerk, Typist): 12th pass (intermediate)
  Age: 18-33 years for most posts (18-30 for some)
  Relaxation: +2 OBC | +5 SC/ST | +10 PwD
  Medical: different medical standards for different posts
    A1/B1/C1/D: vision standards | Must pass medical examination

PHYSICAL STANDARDS:
  Some posts (Station Master, Goods Guard) require specific vision standards
  Colour blindness disqualifies from certain posts
  Always check specific post requirements before applying

NOTIFICATION: released at rrbcdg.gov.in (Ministry of Railways)
  All 21 RRBs release simultaneously
  Choose your preferred RRB (based on state/language preference)
  
APPLICATION FEE:
  General/OBC/EWS: Rs.500 (Rs.400 refunded after appearing in CBT1)
  SC/ST/PwD/Women: Rs.250 (fully refunded after appearing in CBT1)
  
DOCUMENT REQUIREMENTS:
  10th and 12th marksheets + certificates
  Degree certificate (for Group B)
  Caste certificate (if applicable)
  Aadhaar and photo ID

AFTER JOINING:
  Training: 6-12 months departmental training
  Probation: 2 years
  Promotion: seniority-based with departmental exams
    Junior → Senior → Supervisor → Gazetted Officer
  
  GRADE PAY PROGRESSION:
    Group C start: Rs.19,900-29,200
    After 10-15 years: Rs.35,000-55,000
    Senior officer level: Rs.60,000-80,000+

TRANSFERS: mandatory transfer policy — postings across zones
SENIORITY: zone-based, cadre-based — matters for promotion

BEST POSTS (stability + pay + work-life balance):
  Station Master: supervisory, good allowances
  Goods Guard: field work with good pay, travel allowance
  Commercial cum Ticket Clerk: station-based, regular hours