CG offers a wide range of Q SERIES RAILWAY SIGNALLING RELAYS to meet all types of Signaling Circuit Applications such as Route Relay Interlocking, Panel Interlocking, Automatic Signalling, Point Operation and Track Circuiting. Each individual type of relay undergoes extensive TYPE TESTING by Research  Design and Standards Organization (R.D.S.O., Lucknow) of the Indian Railways and approved for use in Railway signalling circuits.