Explanation:

Both statements 1&3 are incorrect.

• India had initially set a target of 20 per cent ethanol blending in petrol by 2030. Later this was advanced by 5 years to 2025 and now it has been further advanced to 2023-24.
• Since ethanol contains oxygen in its molecule, it helps in the complete combustion of fuel, resulting in lower emissions. Thus the blending of ethanol with conventional fuels helps ensure lower emission of carbon monoxide.
• Even as many developed countries debate limiting policy support for grain-based biofuels amid reports of food-price increases and greenhouse gas emissions from deforestation, India is promoting grain-based biofuels. It is promoting ethanol derived from rice, corn and sugar.