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.