Where is Patna ? Patna is the capital of Bihar, India. It is located on the southern bank of the Ganges River, about 290 miles (470 km) northwest of Kolkata (Calcutta). Patna is one of the oldest cities in India, with a history dating back over 2,500 years. It was once the capital of the Mauryan … Continue reading 100 famous best natural Places to Visit in patna bihar before relocation