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Which shift in ethanol feedstock has been central to India scaling up its Ethanol Blended Petrol Programme beyond its early sugarcane-only years?

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1. Which shift in ethanol feedstock has been central to India scaling up its Ethanol Blended Petrol Programme beyond its early sugarcane-only years?

Diversification into grains such as maize and surplus or damaged foodgrains, alongside sugarcane

A shift entirely to cellulosic biomass and agricultural waste

A move to imported ethanol via long-term supply contracts

A move to jatropha-based biodiesel blending

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