Answer : 2. "Ahar "
Explanation :

Ahad archaeological site was known by the name 'Tamravati' in ancient times. This archaeological site is located in Udaipur district of Rajasthan. This place is situated on the banks of the river Ahad. The Ahad culture is a Chalcolithic culture that flourished from 3000 BC to 1500 BC. It is adjacent and contemporary to the Indus Valley Civilization. It is also called Banas culture.