Tender For fabrication and erection of ms supporting channel structure along with new cable trays from entrance of crown adit tunnel gate to column no 28 of service bay of el + 154.00mt (u/s side of eot crane beam) for running of armored cables for supply to the emergency distributionpanelboard (emdb) to be installed at el + 157.00mt (4th floor) of power house, slbhes.