short dated tender - bids are invited for suppy and construction of ug bunker fsc , cement of 43 grade opc , river sand , stone aggregate 40 mm , stone boulders for hard core , placing of ug bunker , video camera based entry system , hot and cool air conditioner , tunnel ventilation system , high efficiency heat exchanger , fire alarm system , hepa filters , activated carbon filters , pressurized oxygen tank , high efficiency solar panels , supply comma installing comma testing and commissioning , multi angle digital camera system , provision of duct for two way , installation of layered led lighting , highly efficient foldable table , modular storage racks , cool glove box , lockable compartments , gi plate 600mm x 600mm x 6mm , gi wire 4 mm , cast iron cover , charcoal , common sal , gi pipe 20 mm , nuts and bolts , lightening conductor , entrance canopy