Nakula and his twin brother Sahadeva were born to Madri, Pandu's second wife, who invoked the Ashwini Kumaras. Gandhari was the mother of the Kauravas, Kunti was Pandu's first wife (mother of Yudhishthira, Bhima, and Arjuna), and Sachi is Indra's wife (not associated with the Pandavas).