This document summarizes information about eco-friendly fuels such as compressed natural gas, biodiesel, solar energy, and electricity. It discusses why eco-friendly fuels are needed to reduce global warming and maintain ecological balance. Examples of eco-friendly fuels are provided along with details about biodiesel production in India. The advantages of eco-friendly fuels include lower emissions and renewability, while the disadvantages include higher production costs and potential impacts on food prices. The future of biofuels in India is seen as promising due to potential for rural development and energy security, with a target of 20% blending by 2017.