Satellite RN Feed in order to speed up the work and enable us to meet the demand as per the need of the hour. This Satellite Radio Net Work reaches 111 Primary Channels, 75 Local Radio Stations. 40 Vividh Bharati Stations and 12 FM Rainbow Stations. Everyday for about an hour CSU feeds the important broadcast instructions and programmes through its Radio Network Transmission to the concerned Stations as per the booking so that the broadcast of commercials can be introduced even at a short notice. Zonewise break - up of AIR Stations' Network is given overleaf.