Tender For s&t cable clearance in the yard to facilitate the engineering earthwork , yard remodeling work and modification/alteration in distributed electronic interlocking (m/s hitachi sts (formerly known as ansaldo sts) make) at madwarani station and new centralized electronic interlocking at saragbundia and auto signaling work (ei based) in connection with 3rd & 4th line work between srba-mwrn in cph-gad section in bilaspur division of sec railway