You can file RTI Application to Central Public Information officer and can get a copy of directive/order/notification if any for clarification.
Application dt.11th Dec,2019 seeking information under RTI Act
Before: CPIO, RPF, HQ...................
Fee: Postal order No..for Rs.10/- Fvg Accounts officer RPF payable at.....
1. Please provide me a copy of the notification/order/directive that states that the Railway Protection Force is to be treated as an ARMED FORCE OF THE UNION OF INDIA OR AS AN ORDINARY UNIFORMED CENTRAL GOVERNMENT FORCE UNDER THE CONTROL AND COMMAND OF THE MINISTRY OF RAILWAYS.