bids are invited for custom bid for services - 8 hpt mawjrong  operation and maintenance of 200 kva dg set and its cleaning including refilling of diesel oil  attending electrical maintenance/wiring switchgear panel/electrical installations and other related miscellaneous works  operation and maintenance of water pump including plumbing work  other related services when need arise 2 shillong studios and office complex  operation of various ac system in the studio setup.  operation of dg set and its cleaning including refilling of diesel oil etc.  attending electrical maintenance/wiring, switchgear panel/electrical installations and other related miscellaneous works  operation and maintenance of water pump including plumbing works  other related services when need arise 3 fm transmitt er laitkor  operation of ac system of fm transmitter and its periodical general maintenance  operation of dg set and its cleaning including refilling of diesel oil etc.  attending electrical maintenance/wiring, switchgear panel/electrical installations and other related miscellaneous works  other related services when need arise 4 rabm shillong office , hostel and quarters  operation of water pump and attending minor plumbing works  cleaning of wildgrowth around technical areas, buildings, entire office compound  assisting in electrical maintenance and other miscellaneous works under the supervision of regular staff  any other works if needed 5 akashvani tura studio cum office complex, transmitte r and staff quarters  operation of various air conditioning system at akashvani tura  operation of dg set including refilling of diesel oil, lubricating oil and its cleaning  attending electrical maintenance/wiring, switchgear panel/electrical installations and othe total quantity :