Tender For modification of equipments/materials in the existing 220kv tb of halavarthi(koppal) 1 & 2 and bus coupler at 220kv lingapura and equipments/materials in the existing 220kv tb of 220kv doni 1 & 2 lines, lingapura 1 & 2 lines and bus coupler at 220kv s/s halavarthi(koppal) in connection with strengthening of existing 220kv lingapura-gadag dc line by replacing drake conductor by drake equivalent htls conductor on total turn key basis.