Indus Valley Civilization belongs to which age?
The Pre-Indus Valley Civilization 7000–5500 BCE was Neolithic and the Early Indus Valley Civilization 5500–3300 BCE we see the slow development and refinement of metal tool. Indus valley civilization achieved it’s peak during the bronze age and at the same time it ended. But sites like Mehergarh which belonged to the pre Harappan stage were part of Neolithic age (4500–3500 BC).