Which of the following rivers is NOT the tributary of Yamuna?

Chambal Betwa Ken Gandak

Gandak

The important tributaries of the Yamuna River are Tons, Chambal, Hindon, Betwa and Ken. Other small tributaries of the Yamuna River include the Giri, Sind, Uttangan, Sengar and the Rind. The Gandaki River, also known as the Narayani and the Gandak, is one of the major rivers in Nepal and a left bank tributary of the Ganges in India.