tender for hiring of 12 nos. silent-type diesel generator sets of 9 nos. 62.5 kva, 1 no. 125 kva and 2 nos. vehicle-mounted 250 kva capacities, for a period of three months (90 days), including transportation, installation, testing, commissioning, associated electrical equipment, service cables, changeover switches, protective devices, earthing arrangements, comprehensive insurance, preventive and breakdown maintenance, on-call technical assistance, mandatory replacement of defective or damaged generators and dismantling after completion, for northeast monsoon preparedness and sump, pump-room and emergency flood-mitigation operations in zone-ii