A Biodiesel Manufacturing Unit at medium scale focuses on producing renewable fuel through the process of transesterification, where vegetable oils, animal fats, or used cooking oils are chemically reacted with alcohol in the presence of a catalyst to form biodiesel and glycerin as a by product. The process includes oil collection and filtration, chemical reaction, separation, washing, drying, quality testing, and packaging. Biodiesel is valued for being biodegradable, non toxic, and environmentally friendly, reducing carbon emissions and dependence on fossil fuels. The unit requires moderate to significant investment in machinery such as oil filtration units, reactors, separators, washing tanks, drying systems, storage tanks, and testing laboratories, along with skilled chemists and trained labor. With the rising demand for sustainable and clean energy solutions, biodiesel has a strong and expanding market in transportation fleets, agricultural machinery, and power generation. By producing high quality biodiesel that meets international standards, the unit can achieve consistent demand, repeat contracts, and good profitability, while also exploring opportunities in exports and carbon credit benefits.