Ṛkṣa (Riksha) was the son of Puraṇjaya (Puranjaya), in the genealogical line of Nīla (Nila), son of King Ajamīḍha (Ajamidha), belonging to the royal line of Puru. Haryaśva (Haryaswa) was the son of Ṛkṣa. He is the founder of the royal line of Pañcāla (Panchala).