Annual Maintenance Of Gogarbham Dam At Tirumala For The Year 2025-26. Sub Work-6: Supply, Erection, Commissioning Of Two No'S Of Office Containers (Shipping Container) With Size 20'X8'X8.5' For Control Room With Interior Work And Provision For Main Door Steps, Toilet And Power Connection Ports & Air Conditioner Ports At Gogarbham Dam At Tirumala.