laying of power cable, replacement of defective cable/laying of power cable for lc 287 in adste/clt section to extend station generator supply, replacement of defective cable in maq yard and re-routing of cable at bridge no 1230 in adste/clt section& wiring of qbca1 relays in connection with provision of qbca1 relay in point operation circuit in lieu of heavy duty contactor units in adste/clt and adste/pgt sections
