selection/appointment of an agency for supply and installation /retrofitting of energy efficient appliances such as, max.35w bldc ceiling fans with 5 stepper electronic regulator, 35 w led flood light, 70w led flood light, 110w led flood light, and 190 w led flood lights in 28 nos. apsrtc establishments (i.e., 9 nos major bus stations, 6 nos a-class bus stations, 5 nos bus depots, 4 nos zonal work shops, 4 nos tyre retreading shops) at various locations in the state of andhra pradesh