The correct answer is Banas. The Banas River is a major river in Rajasthan that flows into the Chambal River (a tributary of the Yamuna). Rivers like Khari, Sukri, Jawai, Bandi, Guhiya, and Mithri are tributaries of the Luni River in Rajasthan, which flows into the Rann of Kutch. The Luni River is the largest river in the Thar Desert region of Rajasthan. It is a unique river as it originates in the Aravalli Range near Ajmer and flows southwest into the Rann of Kutch, an inland drainage basin, without reaching the sea.