The Soan valley and Potwar Plateau on the northwest India.
The Siwalik hills on the north India.
Bhimpetka in Madhya Pradesh.
Adamgarh hill in Narmada valley.
Kurnool in Andhra Pradesh and
Attirampakkam near Chennai,
In the Old Stone Age, food was obtained by hunting animals and gathering edible plants and tubers. Therefore, these people are called as hunter-gatherers. They used stone tools, hand-sized and flaked-off large pebbles for hunting animals.
We have little knowledge about their language and communication. Their way of life became modified with the passage of time since they made attempts to dimesticate animals. Make crude post anda grow some plants.
A few Old Stone Age paintings have also been found on rocks on Bhimbetka and other places. The period before 10000 B.C. is assigned to the Old Stone Age.