Mains Answer Writing - 9 Jul, 2026

GS3

Economy

15 marks

"The success of ethanol blending depends as much on fuel quality and vehicle compatibility as on blending targets." Examine this statement in the context of India's transition towards E20 fuel.

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Tips for your answer

Balance the answer by discussing both the benefits of ethanol blending and the practical challenges of vehicle compatibility and fuel quality.
Remember examples such as E20 fuel, flex-fuel vehicles, BIS fuel standards, second-generation ethanol and fuel adulteration for value addition.
Avoid portraying ethanol blending as only an environmental initiative; connect it with consumer protection, automotive technology, fuel regulation and energy security for a holistic 15-marker.

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