Tender For (i) reliability improvement work with replacement and rehabilitation of telecom gears and telecom cables, ofcs in bangaon-barasat-hasnabad-dumdum jn.-rajchandrapur, sealdah-ballygunge-sonarpur-canning-baruipur-namkhana-diamond harbour-budge budge-majerhat section of sealdah division. (ii) telecom work in connection with replacement of existing panel interlocking system with new electronic interlocking system at nischindapur(ncp) station.