Tender For corrigendum : design, supply, installation, testing and commissioning of 132 kv switchyard equipment and 33 kv indoor and switchyard equipment and allied works on turnkey basis, related to the construction of 132/33 kv gas insulated substation within the premises - design, supply, installation, testing & commissioning of 132 kv switchyard equipment and 33 kv indoor & switchyard equipment and allied works on turnkey basis, related to the construction of 132/33 kv gas insulated substation within the premises of existing salt lake 132 kv ais sub-station under salt lake area office.