A novel and an economical concept has been developed for parabolic dish antennas, which can provide a very large collecting area, over a wide frequency range at an affordable cost. In a Preloaded Parabolic Dish Antenna the backup structure of the dish is considerably simplified by preloading its structural members. A set of high tensile tubular members are clamped rigidly to a central hub, bent elastically to lie close to a parabolic curve and then bolted at the far end to the same number of straight tubular members placed circumferentially along the rim of the dish. The elastic bending ensures that all the structural members are suitably prestressed in order to store in them sufficient initial elastic energy for enabling them to resist gravitational and wind forces under operational and survival wind conditions. The preloaded design minimizes inertia and wind loads on the dish. It also allows rapid fabrication of the antenna. This talk will describe the configuration design of a 12-meter diameter radio telescope based on the PPD concept. The talk will also cover the challenges faced in different stages of its fabrication and testing at RRI. It will also discuss the economical designs now being developed at RRI for the mechanical and servo drive system and a cooled 4 to 8 GHz front end receiver. The talk will also describe the present status of its installation in the RRI field station. Possible growth paths of this project will be discussed.