Answer:
1.5 meters deep and 91 cm length
Step-by-step explanation:
Mohenjo-daro was an area of Indus Valley. This region had good planning and architectural works due to the high level of civilization.
It had drains which were constructed with the size 1.5 meters deep and 91 cm length from bricks and it helped as a link to many north-south and east-west sewers.