Following its success in developing Gurgaon as an attractive city near Delhi, Haryana plans to develop three new cities with an aim to boost progress of its areas close to the national Capital and to decongest the metropolis.Haryana Chief Minister Bhupinder Singh Hooda told mediapersons here that the new cities will be developed at Sampla, Badli-Jahangirpur and Samalkha. A fourth city, Rajiv Gandhi Education City, will be developed at Kundli.The Chief Minister said the education city will be developed into a centre of excellence with some of the best educational institutions from different parts of the world being given space to set up their institutes. He said land had been identified for the proposed education city which will have seats for students from the state. Describing Gurgaon as the "prestigious city' of Haryana, he said it suffered from some infrastructure handicaps which were being improved. "The new cities will have the best infrastructure,' he said. The Chief Minister said his government was considering a separate development authority for Gurgaon.