Cajanus, commonly known as pigeon pea, is a leguminous plant native to the Indian subcontinent. It is cultivated for its edible seeds and pods, which are rich in protein and essential nutrients. The plant is drought-resistant and can thrive in various soil types, making it a valuable crop in many tropical and subtropical regions. The seeds of Cajanus are often used in traditional dishes across different cultures, particularly in Indian cuisine. They can be cooked whole, split, or ground into flour. Additionally, Cajanus plays a role in improving soil fertility through nitrogen fixation, benefiting subsequent crops in rotation.