Tenders for Supply of Underground, Armoured, Unscreened Railway Signalling Cable Heavy Duty With High Conductivity Copper Conductor Of Size 12 Core X 1.5 Sq Mm As Per Specn. No.Irs: S-63/2014 Rev.4.0 With Latest Amdt.If An Y. Warranty Period: 30 Months After The Date Of Delivery