The correct answer is A. Kumhrar.
Kumhrar is a locality in Patna, India. It is located on the southern bank of the Ganges River, about 2 km from the Patna Junction railway station. The area is known for its archaeological significance, as it is the site of the ancient city of Pataliputra, the capital of the Mauryan Empire.
In the 19th century, a number of Mauryan relics were found in Kumhrar, including a pillar of Ashoka, a stone inscription, and a number of coins. The pillar of Ashoka is a 15-foot-tall stone pillar that was erected by the Mauryan emperor Ashoka in the 3rd century BC. The inscription on the pillar is written in Brahmi script and records Ashoka’s conquest of Kalinga. The coins that were found in Kumhrar are also from the Mauryan period. They are made of silver and copper, and bear the image of Ashoka.
The archaeological findings at Kumhrar provide valuable evidence about the history of the Mauryan Empire. They show that Pataliputra was a major city during the Mauryan period, and that it was an important center of trade and commerce. The findings also show that the Mauryans were a powerful and sophisticated empire.
The other options are incorrect because they are not the sites of the ancient city of Pataliputra. Bhikna hills is a hill located in the Patna district of Bihar, India. Anisabad is a locality in Patna, India. Chitkohra is a locality in Patna, India.