Supply, retrofitting, testing, and commissioning of, Numerical Line Protections Relays for 400KV Main- I relays, and supply of spares as per attached the technical, specification, and, commissioning of Numerical Line Protections Relays for, 400KV Main- II relays and supply of spares as per attached, technical specifications, 230KV Main- I relays and supply of spares as per attached, technical specification, 230KV Main- II relays and supply of spares as per attached, installation, commissioning of ESCADA and GPS Time Synchronizing, System and supply of spares as per attached technical