ELECTRICAL AND MECHANICAL ( E & M ) WORKS COMPRISING OF L. T. PANELS, L. T. CABLES, LIGHTING, HYDRAULICS, FIRE SAFETY SYSTEMS, UPS, DG SETS, HVAC FOR DEPOTS AT CHALLAGHATTA ( PH- 2 ) AND AIRPORT ( PH- 2B ) UNDER PACKAGE- 3 OF BMRCL PROJECT PHASE- 2 & 2B.