Rakhigarhi (राखीगढ़ी), an archeological site in Haryana is dated to be 3000 BC and might be even older. As of July 2021, the site isn’t ready for visitors just yet. There is a museum but that’s under construction too. So, if you are planning to visit, just wait for a few years.

An archaeological site Rakhigarhi fenced off with a notice advising visitors to wait a few years due to ongoing construction.
An archaeological site notice board at Rakhigarhi provides information about the location and its historical significance, set against a backdrop of open landscape.
Lake in Rakhigarhi