Construction of Cut & Cover Tunnel No. 1C (Approx. length - 90m) at Ch. 6.550 km to 6.640 km, C No. 2A (Approx. length - 50m) at Ch. 6.550 km to 6.640 km, works of C No. 1B (Approx. length - 150m-RCC Box) at Ch. 6.750 km to 6.90 km, C No. A0 (Appro