<P> Currently, C.D. Blocks are administrative units of 3rd level in some states of India (equal to tehsils in other states). For example, Bihar has 38 districts and 534 C.D. Blocks . West Bengal has 18 districts and 341 development blocks . </P> <P> The community development programme was launched on a pilot basis in 1952 to provide for a substantial increase in the country's agricultural programme, and for improvements in systems of communication, in rural health and hygiene, and in rural education and also to initiate and direct a process of integrated culture change aimed at transforming the social and economic life of villagers. The community development programme was rapidly implemented . In 1956, by the end of the first five - year plan period, there were 248 blocks, covering around a fifth of the population in the country . By the end the second five - year plan period, there were 3,000 blocks covering 70 per cent of the rural population . By 1964, the entire country was covered . </P>

Where was the idea of the community development programme implemented in 1952