Maintenance Of Electrical And Mechanical Installation In Non Residential Building Of Income Tax And Central Excise Office Ranchi During 2025 26. Sh Wiring Of Point In Common Places Corridor And Ito Chambers Supplying And Drawing Of Power Circuit Change Of Switchboards And Switch Socket Regulators Mc Bs And Replacement Of Damaged Fans And Fittings In Various Location Of Income Tax Annexue Building Premises.