supply, installation, testing and commissioning of ht oh lines, towers, cables and earths etc., for the work of supply, erection, testing and commissioning of packaged type compact substation ( 11 kv/433 v, 500 kva, 11 kv vcbs) ht oh lines and towers to meet additional water heater loads at various locations in tirumala (part-b ht oh lines and towers)
