Changing cropping pattern of oilseed crops and its diversification: The case of Thar Desert, Rajasthan (1985–1986 to 2015–2016)

India has been one of the largest producers oilseeds in world. Correspondingly, oilseed sector occupies an important position agricultural economy country. Oilseeds, especially edible oilseeds, have integral part cropping system till beginning monoculture triggered by implementation a new agriculture strategy since 1960s. This paper evaluates pattern diversity Thar Desert Rajasthan at district level. also highlights development programmes launched state and central governments to promote production dry region state. Many statistical techniques are used, for instance, Herfindahl Index, Entropy Composite examine diversification specialization oilseeds.