Provision of telecom arrangements inconnection with reconstruction of rpf barrack &amp new running room at arakkonam , telecom augmentation facilities at zettc/avadi, telecom arrangements in connection with development of station building at vn &amp mpi, provision of cctv surveillance cameras at railway school/perambur and provision of railnet through ofc to parcel office and tte lobby (mas , kpd &amp tbm) over chennai division of southern railway.