modification, alteration, augmentation, design, manufacture, supply, installation, testing andcommissioning of existing distributed type hot stand by electronic interlocking (ei) systemof kyosan make conforming to attached signalling plans and rdso specifications forelectronic interlocking no. rdso/spn/192/2005 with latest amendments and supply ofother indoor and outdoor materials, trenching ,laying/jointing of various sandt cables,foundation, errection of signal and location boxes, fixing of po
