Hii There,

The civilization was first identified in 1921 at Harappa in the Punjab region and then in 1922 at Mohenjo-daro (Mohenjodaro), near the Indus River in the Sindh (Sind) region . Both sites are in present-day Pakistan, in Punjab and Sindh provinces, respectively.

For detailed explanation, please visit:

https://learn.careers360.com/school/question-explain-indus-valley-civilization-23686/

I hope this answers your question.

Thanks