Which one of the following ancient sites in India is known for the oldest forms of human communication?

Bhimbetka is the Indian site known for the oldest forms of human communication.

Its rock shelters carry prehistoric paintings that record early visual expression and shared meaning.

Dholavira is a Harappan city noted for planning and a signboard script, but not for the earliest communication forms.

Ropar is a Harappan-period site and does not hold the oldest such record.

Sinauli is known for chariot and burial finds, not for the earliest human communication.

The Bhimbetka rock art is a UNESCO-listed testimony to humanity's early symbolic communication.