Howrah Division-Signalling Work In Connection With- Schedule A1-Signalling Cost For Construction Of New Lhs In Lieu Of Lc Gate No. 7/C By Railway'S Relieving Girder Under Aen/Ndae. Schedule A2-Telecommunication Cost For Construction Of New Lhs In Lieu Of Lc Gate No. 7/C By Railway'S Relieving Girder Under Aen/Ndae. Schedule B1-Signalling Cost For Construction Of New Lhs In Lieu Of Lc Gate No. 7/1 By Railway'S Relieving Girder Under Aen/Ndae. Schedule B2-Telecommunication Cost For Construction Of New Lhs In Lieu Of Lc Gate No. 7/1 By Railway'S Relieving Girder Under Aen/Ndae.