Signaling work in connection with various sanctioned Engineering works for CTR, TTR ( TWS + WCMSC ), TRR, TSR, in Dhanbad Division under Engg. Main Estimate No. 18, 09, 21, 12, 14, 11 and 13/ TR/ DHN of 2023- 24 and Signaling Sub Estt. No. 47, 34, 31, 33, 37, 38 and 36/ S & T/ DHN of 2023- 2024.