bids are invited for operation and maintenance of electro-mechanical installations - providing operation of various electro mechanical services such as lifts, pump set, dg set, electrical installation, compound light, ac unit, transformer substation, ht panel including .. , operation and maintenance of electro-mechanical installations - a) 6a piano type switch isi marked , operation and maintenance of electro-mechanical installations - b) 6a 3pin socket isi marked , operation and maintenance of electro-mechanical installations - c) 100w deluxe rotary step type fan regulator , operation and maintenance of electro-mechanical installations - d) 12w led bulb , operation and maintenance of electro-mechanical installations - e) two point five mfd capacitor suitable for ceiling fan , operation and maintenance of electro-mechanical installations - rewinding of ceiling fan motor with similar gauge enamelled copper wire i/c checking the faulty ceiling fan, dismantling, taking to workshop for repairs bring back to site after wi..