President A.P.J. Abdul Kalam has said that knowledge of technology was the means for realising sustainable rural prosperity and employment generation. He said the concept of PURA (providing urban facilities in rural areas), if backed with technology, would bridge the rural-urban divide. Addressing the convention of the National Alliance and the first convocation of the Jamshedji Tata National Virtual Academy here on Monday, Dr. Kalam said village knowledge centre was one of the essential components for realising the goals of graduating into a knowledge society and lead to the transformation of the nation into a developed country before the year 2020.