Rajgriha is an ancient city located in the state of Bihar, India. It served as the capital of the Magadha kingdom and is known for its historical significance in Indian culture. The city is surrounded by hills and features several important archaeological sites, including the ruins of ancient palaces and monasteries. Rajgriha is also notable for its association with Buddhism. It was here that Gautama Buddha delivered many teachings and sermons. The city is home to several important Buddhist sites, such as the Griddhakuta Hill, where Buddha is believed to have preached to his followers.