It is responsible for installing, maintaining and operating all types of telecommunications equipment and information systems.

The flag and cap badge feature Mercury, the winged messenger of the gods, who is referred to by members of the corps as "Jimmy".

By the end of 1950 this troop had 1 Officer and 17 other ranks and their tasks included establishing a signals office at Army HQ, provision of a signal dispatch service, manning a switch board and the construction and maintenance of underground as well as field cables.

All these signal units and sub-units administratively come under the aegis of the Regimental Centre located at Panagoda Cantonment.

(Information Technology Unit) The corps also runs a School of Signals[3] in Kandy, established on 15 July 1991.