The longest of all the Indus tributaries is the

Answer: Option C

The longest of all the Indus tributaries is the Chenab. The Chenab river is the largest tributary of Indus river. Indus River, on whose banks one of the ancient great civilization of India i.e Harrppan civilization developed is one of the major rivers of south Asia. InIndia it flows through Ladakh and then enters into Pakistan.