Crossing of 1 x 1700 mm dia & 1x 1500mm dia M S Casing pipe for 1200 mm dia Carrier pipe passing under Rly Track/land through RCC box culvert (2.744m x 2.475m) at km 281/15-17 on UMB-LDH section ( Deposit Work ) in the section of SSE/W/RPJ under AD