https://www.indiapost.gov.in/VAS/Pages/News/EC_005282021_OMcal | RBE- REVOLUTION BY EDUCATION

https://www.indiapost.gov.in/VAS/Pages/News/EC_005282021_OMcallingforoptionCGLE2018.pdf
Calling for Option/Preference of Postal Circle from candidates recommended
by Staff Selection Commission for appointment as Inspector Posts in Department of
Posts through Combined Graduate Level Examination, 2018.
Official website link- https://www.indiapost.gov.in/vas/Pages/IndiaPostHome.aspx