 For the diesel-ignited engines, according to his opinion diesel mixed with 25% of bio-diesel made from vegetable oil extracted from palas, mahua, and other seeds had immense impact on the petroleum reserve and the environment, while also utilizing more than four lakh hectares of waste, low-quality land currently not under cultivation.During the NDA regime his rural development policies were widely acclaimed by every one.Prime minister A B Vajpayee praised Patil's work and had given him every support from the government.