Castor seeds are the seeds of the castor oil plant (*Ricinus communis*), known for their high oil content. The oil extracted from these seeds is used in various industrial applications, such as lubricants, coatings, and biofuels, as well as in pharmaceuticals and cosmetics. Castor seeds contain ricin, a toxic protein, making them dangerous if ingested. The plant is primarily grown in tropical and subtropical regions, with India being the largest producer of castor seeds.