how is the drainage system in harappan civilisation - Social Science - In the Earliest Cities

Question

how is the drainage system in harappan civilisation

Prakhar Nigam · Answer

People had separate bathing areas and soe had wells to supply
water They had covered drains in a straight line As the drains were
covered,inspection holes were provided at intervals to clean them
Drains at houses were connected to those on streets and smaller
drains led to bigger drains All the drains had a gentle slope so
that water could flow through it