supply, installation, testing & commissioning of the telecom work (indoor & outdoor) for provision for tunnel radio system for vhf simplex communication in 12 tunnels (t1, t2, t4, t8, t15, t16, t17, t23, t24, t25, t26 and t27) in jammu tawi- udhampur- shri mata vaishno devi katra section of firozpur division of northern railway
