Retrofitting of old Distance and Transformer Differential relays with new Alstom make IEC 61850 based numerical Relays. Total number of relays to be retro-fitted are 293. Execution of this project started immediately and ISSPL is confident of completing the execution before the desired time line. This project is being executed for Karnataka Power Transmission Company Ltd (KPTCL). Purchase order was placed by GE T&D India Ltd , Pallavaram, Chennai.