There are many sizes of COW each designed for different needs, including easy access, more strength or more stability. The smallest versions sit on trailers that can be pulled by nearly any standard truck, whereas the largest versions of a (COW) require a heavy-duty rig to tow and set up the tower.This installation system requires low bed truck for mounting DG bed, workspace for ODBTs, and space for tower erection,where the tower is also fixed toa steel portal using Channel sections. Depending upon the height of tower required (15m to 21m), the design is done so that the entire tower will be mounted on the truck in horizontal position (3m to 6m long) and the rest height will be telescopically inserted. The top 3m portion will be mounted with GSM and MW antennas in horizontal position. The rest is transported in a horizontal position. The tower will be designed as a guy tower with number of guys installed from stability criteria. The guys will be connected to the ground on counter weights fixed from extended steel arms (truss type).Erection will be done by self erecting mechanism in the field.