Sector-wise National Expenditure on Research and Development in India (1948-1949, 1950-1951, 1955-1956, 1958-1959, 1965-1966, 1970-1971, 1975-1976, 1980-1981, 1985-1986, 1990-1991 and 1992-1993 to 2011-2012)
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