Tenders for Proposed Service Building In Connection With Ei System, 2 2 Nos. Of Location Hut In Connection With Upgradation Of Dbrg Station From Rri To Electronic Interlocking For Reliability And Enhancement Of The Signaling System, 3 2 Nos. Oc Location Hut In Connection With Up-Gradation Of Dbrg Station From Rri To Electronic Interlocking For Reliability And Enhancement Of The Signalling System.