Power Grid Corporation of India (POWERGRID) has invited bids for a pre-bid tie-up to set up a ±800 kV high-voltage direct current (HVDC) transmission line package connecting the Barmer-II HVDC terminal in Rajasthan and the South Kalamb HVDC terminal in Maharashtra to evacuate 6 GW of solar power from the Rajasthan Renewable Energy Zone Phase-IV.