macls outdoor signalling works like cable trenching and laying /location erection andwiring / signal foundation and erection /installation of sliding barrier /conventional earthing,etc to facilitate engg. for earth cutting work in yard for formation, drain , retaining wall, bellmouth in kalumna-ex gondia section, gauge conversion section (g-jbp, cwa-mfr &ngp-cwa) of nagpur division of s.e.c. railway.bidding type normal tender .