Ahmedabad -www.rrbadi.org
Ajmer -
www.rrbajmer.org
Allahabad -
www.rrbald.nic.in
Bengaluru -
www.rrbbnc.gov.in
Bhopal -
www.rrbbpl.nic.in
Bhubaneswar -
www.rrbbbs.org
Chandigarh -
www.rrbcdg.gov.in/
Chennai -
www.rrbchennai.net
Gorakhpur -
www.rrbgkp.gov.in
Guwahati -
www.rrbguwahati.gov.in
Jammu-Kashmir -
www.rrbjammu.nic.in
Kolkata -
www.rrbkolkata.org
Malda -
www.rrbmalda.gov.in
Mumbai -
www.rrbmumbai.gov.in
Muzaffarpur -
http://rrbmuzaffarpur.bih.nic.in/
Patna -
www.rrbpatna.gov.in
Ranchi -
www.rrbranchi.org
Secunderabad -
www.rrbsec.org
Thiruvananthapuram -
www.rrbthiruvananthapuram.net

Coins in India are mainly produced in four cities :1. Mumbai
2. Delhi
3. kolkata
4. Hyderabad
The production of Indian Coins in city puts an identification mark under the year of issue.
Indian Coins produced in :
Mumbai - Have a diamond
Delhi - Have a dot
Kolkata - Nothing beneath the year
Hyderabad - Have a star
(white arrows shows the identification mark )