Energy expert and Planning Commission member, Kirit S. Parikh spoke to Outlook ... Excerpts: The debate over food versus fuel has made biofuel a dirty word... Internationally, biofuel has become a dirty word. But in India, I don't think it will become a dirty word. There are reasons for this. We are short of land and cannot think of converting food land into fuel land. So, we are strictly restricting it to only degraded land, that too only land that does not have any further alternative economical valuable uses. We also have to realise that biodiesel plantations like jatropha take three to four years to start giving yields