To provide reliable, secure and uninterrupted communication network in Rajasthan and Gujarat sector, a survey for installation of a communication relay station between Delhi and Jodhpur was carried out by RCPO in the early 1970s. Finally a site on Aravalli hills on the outskirts of Jaipur was chosen for setting up of the relay station. To provide a suitable administrative support to the equipment installation site, the administrative control station was selected close to Jaipur city. The foundation stone of the Units was laid on 12 Nov 74 by Shri Haridev Joshi, the then Chief Minister of Rajasthan. The first commanding officer of the Units took over the command on 26 May 77. However, the Units attained operational status in 1979. The role of the Units is to ensure an effective and uninterrupted communication between Delhi and Jodhpur and also act as a relay centre for providing transmitting/receiving facilities to and from the peripheral Unitss and adjacent hub centres.