Toor dal or arhar dal is a split pigeon pea with subtle nutty flavor. It is one of the yellow dal. Toor dal is an ancient crop, believed to be cultivated for food since last 3000 years. Toor dal looks similar to chana dal and can be substituted with or for chana dal. In Indian grocery store, you can get toor dal with oil coating to increase its shelf life or one without oil coating. Toor dal is also used to make a poula Andhra dish Kandi Podi, which is ground toor dal with with chana dal or mung dal along with spices such as dried red chili, hing, cumin, curry leaves, salt.
Toor dal is also commonly known as rahar, toovar, togari, tuvaram paruppu, etc in local languages around Indian subcontinent. Also spelled, Tur dal.