Currently, the world is facing an immense threat from pollution and global warming. Fossil fuels are limited, and they are considered as non-renewable source of energy. Crude oil reserves are consumed at large scale with respective passing year. If the consumption rate is increased, it may cause ruination and irreplaceable damage to the environment. It now poses a great threat to mankind and to our planet earth. Renewable source of energy is revolutionary in this modern era. Biofuels are one of the most promising alternatives to conventional sources of fuel. Biodiesel is an eco-friendly, non-toxic green fuel that reduces the use of fossil fuel and helps combat climate change. Biodiesel can be produced through transesterification of waste animal fats into fatty acid methyl esters. India is the second largest producer of goat-based meat in the world. Currently, there is so much of waste fat being generated from meat processing plants and dumped in open grounds. It is hazardous waste and causes environmental pollution. The process of converting waste fat to biodiesel will reduce the dumping of waste fat. It can act as a major technique in fighting menace of pollution and helps in better waste management.

Keywords: Renewable Energy; Mutton Fat Waste; Transesterification;