Summary: —- **1. Case Overview** – **Petitioner:** Power Grid Corporation of India Limited (PGCIL) in all cases. – **Matters Heard:** Six petitions (Nos. 380, 389, 398, 743, 746, and 766) concerning transmission systems in the Northern, Southern, Eastern, and Western Regions. – **Purpose of Petitions:** The core purpose across all petitions is the regulatory approval […]