The present study analyzed factors demand for modern rice technology adoption in second-generation Green revolution. A considerable progress in development and adoption of modern rice technology was observed in the country due to advent of 1st, 2nd and 3rd generation rice cultivation. Only seed and fertilizers were found to have elastic demand. The price elasticities of land, labor and insecticides had positive coefficient. This could be due to scarcity of land and rational use of these inputs as marginal productivity of these inputs would be higher than their marginal costs. The complementary relationships of land-fertilizer, animal-seed, seed-labor and fertilizer-insecticide pairs characterize intensive use of inputs in the third-generation modern rice technology. Considerable higher degree of substitutions was observed for animal-labor and land-labour pairs which indicate the modern rice technology in Second-Generation Green Revolution could be labor intensive for the small farm holders.