design, engineering, manufacturing, testing before dispatch, loading, supply for destination including transportation, civil & construction works, erection, testing and commissioning on turnkey basis: (i)dismantling of existing 1no. 315mva ict at 400kv veltoor sub-station and erection at 400kv suryapet ss and also supply & erection of connected 400kv bay extension at 400kv suryapet ss (ii) dismantling of existing 1no.315mva ict at 400kv veltoor ss and erection at 400kv asupaka ss(iii)execution of 2 nos. 500mva ict bay associated works at 400kv veltoor ss in existing 2 nos.315mva ict bays (iv) dismantling of existing 1no. 315mva ict at 400kv gajwel sub-station and erection at 400kv dichpally ss and also supply & erection of connected 400kv bay extension of at 400kv dichpally ss(v) execution of 1 nos. 500mva ict bay associated works at 400kv gajwel ss in existing 1 nos.315mva ict bay