The correct answer is Nalanda.
Nalanda district is located in the southern part of Bihar state, India. It is bordered by Patna district to the north, Gaya district to the east, Rohtas district to the south, and Jharkhand state to the west. The district has a population of over 3 million people and is one of the most densely populated districts in Bihar.
The district is home to a number of important historical and archaeological sites, including the Nalanda Mahavihara, which was one of the most important Buddhist universities in the world. The district is also home to a number of Neolithic sites, which are evidence of the early human habitation in the area.
The Neolithic sites in Nalanda district are located in the following areas:
- The Sonpur area, which is located on the banks of the Son River.
- The Rajgir area, which is located in the foothills of the Himalayas.
- The Nalanda area, which is located near the Nalanda Mahavihara.
The Neolithic sites in Nalanda district are important because they provide evidence of the early human habitation in the area. The sites also provide evidence of the development of agriculture and the use of tools and weapons in the area.
The Neolithic sites in Nalanda district are a valuable resource for archaeologists and historians. The sites provide information about the early human habitation in the area and the development of agriculture and the use of tools and weapons in the area.