The pigeon-pea plant, also known as cajanus cajan, is a popular crop among farmers in tropical regions. It goes by various names such as the red gram, arhar, tur, toor, and split pigeon-pea. It belongs to the legume family and is a good source of vegetarian protein. The pigeon-pea plant grows as a small shrub with long-podded fruits that contain edible seeds. It is commonly used to make soups, stews and curries. The various names given to the pigeon-pea plant are derived from different regions where it is grown, making it a regional delicacy across the world.