Concept:CORAS is a specialized commando force created for railway security. It operates under the Railway Protection Force (RPF).
Explanation:CORAS stands for Commandos for Railway Safety.
It was launched by the former Railway Minister Piyush Goyal.
The unit consists of personnel from the RPF and the Railway Protection Special Force (RPSF).
It is headed by the Director General of RPF.
CORAS commandos are trained at the NSG academy and by Greyhounds, who specialize in anti‑insurgency operations against Naxalites.
Training includes handling landmines, IEDs, hostage rescue, sniping, and breaching.
The first deployment of CORAS was in Naxal‑affected areas of Chhattisgarh.
Thus, CORAS is a separate commando unit of the Railway Protection Force (RPF).
Answer:Railway Protection Force