Answer:
2600 BCE
Explanation:
The urban centers of the Harappan civilization developed from the 2600 millennium BCE.
The urban centers during this period included places like Harappa, Ganeriwala, Mohenjo-Daro in present-day Pakistan, Dholavira, Kalibangan, Rakhigarhi, Rupar, and Lothal in present day India.
Harappan civilization occurred along with the Mohenjo-Daro civilization around 2600BC
