1. Harappa is an important site of Indus valley Civilization.
2. It is situated at the present day Sahiwal district of Punjab, Pakistan.
3. The first Harappan sites were discovered by Dr. D.R. Sahni and Dr. R.D. Banarjee in 1921.

The bathing pool was the unique structure of Mohenjodaro. It measures 11.88 × 1.01 × 2.43 mt³. The floor of the bath pool was made of burnt bricks. ​​◊ Granary was found in Harappa and was built on a massive brick foundation over the area of 45 square meters. A, 55 × 37 meters of area of granary was found in Mohenjodaro. ​◊ Dockyard having the area of 37 × 22 meters was found in Lothal.

(i) The Social System of Harappan was fairly egalitarian (equality and equal rights).(ii) No signs of slave tradition or Varna system have been found.