Work on the much-awaited route relay interlocking (RRI) system has been completed at Patna Junction under the Danapur division of East Central Railway (ECR). PATNA: Work on the much-awaited route ...
The Railway Board has approved the ambitious plan of Danapur division of East Central Railway (ECR) to construct the Route Relay Interlocking (RRI) system at the Patna Junction, Danapur and Jhajha ...
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