Introduction:
Patna is the capital city of the state of Bihar in India. It is located on the southern bank of the Ganges River. The city has a rich historical and cultural heritage and is a significant center of education, commerce, and administration in the region.

Location:
Patna is situated on the bank of the Ganges River, which is one of the major rivers in India. The Ganges River is considered sacred in Hinduism and is worshipped by millions of people. It is also an important waterway for transportation and irrigation purposes.

Importance of the Ganges River:
The Ganges River holds immense cultural, religious, and economic significance in the Indian subcontinent. It is believed to be the embodiment of the goddess Ganga and is considered holy by Hindus. Pilgrims from all over the country visit the river to take a dip in its waters, which is believed to cleanse them of their sins.

The river also plays a crucial role in the agricultural economy of the region. The fertile plains along the banks of the Ganges support the cultivation of crops such as rice, wheat, and sugarcane. Additionally, the river is a source of water for irrigation, enabling farmers to grow multiple crops throughout the year.

Historical Significance:
Patna has a long and illustrious history dating back to ancient times. It was an important center of trade and culture during the Maurya and Gupta empires. The city has witnessed the rise and fall of several dynasties and has been ruled by various kingdoms throughout history.

During the reign of Emperor Ashoka, Patna (then known as Pataliputra) served as the capital of the Maurya Empire. The city flourished under his rule and became a center of learning and culture. Many significant historical sites, such as the ruins of the ancient city of Pataliputra, can be found in and around Patna.

Conclusion:
In conclusion, Patna is situated on the bank of the Ganges River, which holds immense cultural, religious, and economic significance in the region. The city's location on the banks of this sacred river has played a crucial role in its historical, cultural, and economic development.

Correct answer is B ganga
Patna is situated in banks of rive ganga.