Debated. A study says these pots are much older than the usual Indus dates, but that longer timeline is still argued.
The team worked at Bhirrana, in Haryana in India, and also at Lothal, Dholavira, and Kalibangan. At Bhirrana they found many animal remains, including horn cores and the teeth and bones of cows, goats, antelope, and deer. They also report the oldest pots they link to this civilisation. The page says some belong to an early Harappan time about 6,000 years ago, and some to the Hakra time about 8,000 years ago. These places lie along the Ghaggar-Hakra rivers. The team tested the bones and teeth to learn how strong the rains were long ago.
People still argue about why the Harappan cities later grew weaker.