Indus Valley Civilization or Harappa Civilization is the oldest Civilization of India as well as one of the world's earliest Civilizations, which is also contemporary to the Mesopotamian and Chinese Civilizations. 
- The period of Indus Valley civilization was 2500-1750BC.
- This civilization belongs to Chalcolithic Age(Bronze Age/Tamra Yuga).
- Harappa was the first discovered site of Indus valley civilization.
- Almost 80% settlement of the civilization was along the Saraswati.
- The Indus valley civilization was spread over Sindh, Baluchistan, Punjab, Haryana, Gujarat, Rajasthan, Western UP and Maharashtra.
- It's name(Indus Valley Civilization) was given by John Marshall.
- It extends from western Utter Pradesh to Baluchistan and from Ropar(Gujrat) to Northern Maharashtra.
- The capital Cities of the Civilization were Mohenjo-Daro and Harappa.
- While Port cities were Sutakgendor, Lothal, Balakot, Kuntasi and Allahdino.