Explanations:
The period of Indus Valley Civilization is believed to be 2500 BC. Evidence of two ancient cities was found after excavation in the Indus Valley are :- 1. Harappa - It was discovered under the leadership of Dayaram Sahni in 1921 AD. 2. Mohenjodaro - It was discovered under the leadership of Rakhaldas Banerjee in 1922 AD. It is located in Larkana of Sindh province (in Pakistan).