The ancient city of Harappa is situated on the bank of the river:

Harappa is situated on the left bank of the Ravi river (an old course of the Ravi), in the Sahiwal district (formerly Montgomery district) of Punjab province, Pakistan.

About Harappa:

• It was the first site of the Indus Valley Civilisation to be excavated, in 1921.
• Because it was discovered first, the whole civilisation is often called the "Harappan Civilisation".
• Its ruins were noticed by travellers and officials in the 19th century, but large parts of the site were damaged when bricks were taken away for building the Lahore-Multan railway line in the 1850s.

Features of Harappa:

• Like other major cities, it had a raised citadel area and a lower town.
• It had a series of brick platforms that are often described as "granaries", arranged in two rows.
• It had working floors (circular brick platforms), probably used for pounding grain.
• It had workmen's quarters (rows of small houses).
• Two cemeteries have been found: "Cemetery R-37", of the mature Harappan period, and "Cemetery H", of a later period, where pottery was painted differently.
• Important finds include seals, terracotta figurines, stone weights, beads, and a red sandstone male torso.

About the Ravi river:

• It rises in Himachal Pradesh, flows through Punjab (India), and enters Pakistan, where it joins the Chenab.
• In Greek accounts it was called "Hydraotes".
• Lahore stands on the Ravi.

Why not the other options?

• ✗The Indus flows past Mohenjo-daro.
• ✗The Chenab and Beas are other rivers of the Punjab region.