Competitive bids are invited for pre-bid tie up for Transmission Line Package (TW01) for 220 kV double circuit Kathalguri (NEEPCO)─Namsai (POWERGRID) line (75 km) associated with North Eastern Region Strengthening scheme XV (NERSS XV) through tariff-based competitive bidding (TBCB) route prior to request for proposal (RfP) bid submission by POWERGRID to bid process coordinator (BPC).