According to a Northern Railway official, a person named Deepak in RPSF uniform was found engaged in ticket checking of passengers in the main hall of Old Delhi station by RPF SI Ravit Kumar Sharma on February 12.
During the questioning, the impostor claimed himself to be a constable of RPSF 12th battalion and produced an 'identity card', which on minute checking was found to be fake.
The 12th Battalion was also contacted to cross check the facts.
After detailed verification, the impostor was handed over to GRP and FIR was filed under various sections of Indian Penal Code against him, the official said.