Delhi-based startup KNP Arises collects oil from FBOs (food business operators) so that it can be converted into biodiesel. It also offers a comprehensive range of environmental services that include helping companies with a supply of blended biodiesel, industrial tank cleaning, recycling all types of agricultural and blood waste, and a biogas anaerobic digestion facility, among others. The company is also building a tech-enabled supply chain with the help of its mobile application. Its clients are major biodiesel manufactures in the country, and its anaerobic digestion facility has the capacity for processing up to 60,000 tonnes of liquid food waste per year. Revenue is generated by selling the used cooking oil.