Design, supply, installation, testing and commissioning of indoor and outdoor Signalling works consisting of electronic interlocking with inbuilt Block Instrument, Dual SSDAC, MSDAC, integrated power supply system, data loggers, RDPMS etc., and associated works at stations Yog Nagri Rishikesh, Shivpuri, Byasi, Devprayag, Janasu, Maletha, Srinagar, Dhari Devi, Tilani, Gholtir, Gauchar, and Karnaprayag (120.30 km) section, including tunnels T1 to T16, in connection with the new single BG rail line between Yog Nagri Rishikesh and Karnaprayag in Moradabad Division of Northern Railway in the state of Uttarakhand, India