Castrol India Ltd manufactures and sells engine oil, transmission fluids, and other lubricants primarily to the automotive industry. The company sells its products under the Castrol brand. The firm organizes itself into two segments based on product type: automotive and nonautomotive. The automotive segment, which generates the vast majority of revenue, sells engine and transmission oil for automobiles, motorcycles, commercial trucks, and buses. The nonautomotive segments include lubrication products for the marine, aerospace, and industrial manufacturing industries. Nearly all revenue comes from India.