Reliance Infrastructure Limited has announced the completion of sale of its entire 74% equity stake in Parbati Koldam Transmission Company Limited (PKTCL) to India Grid Trust (IndiGrid) for an enterprise value of Rs.900 crore. RInfra owns 74% in Parbati Koldam Transmission Company Limited (PKTCL) located in the state of Himachal Pradesh and Punjab in joint…