There are 16 RRCs handling recruitment for Group D posts (Level 1).
| SL No | Railway Zone (RRC) | Official Website |
|---|---|---|
| 1 | RRC Central Railway (CR) | rrccr.com |
| 2 | RRC Eastern Railway (ER) | rrcer.org |
| 3 | RRC East Central Railway (ECR) | rrcecr.gov.in (earlier rrcrail.in) |
| 4 | RRC East Coast Railway (ECoR) | rrcbbs.org.in |
| 5 | RRC Northern Railway (NR) | rrcnr.org |
| 6 | RRC North Central Railway (NCR) | rrcpryj.org |
| 7 | RRC North Eastern Railway (NER) | ner.indianrailways.gov.in |
| 8 | RRC Northeast Frontier Railway (NFR) | nfr.indianrailways.gov.in |
| 9 | RRC North Western Railway (NWR) | rrcjaipur.in |
| 10 | RRC Southern Railway (SR) | rrcmas.in |
| 11 | RRC South Central Railway (SCR) | rrbsecunderabad.gov.in/rrc.asp |
| 12 | RRC South Eastern Railway (SER) | rrcser.co.in |
| 13 | RRC South East Central Railway (SECR) | secr.indianrailways.gov.in |
| 14 | RRC South Western Railway (SWR) | rrchubli.in |
| 15 | RRC Western Railway (WR) | rrc-wr.com |
| 16 | RRC West Central Railway (WCR) | wcr.indianrailways.gov.in |