With a Buddhist complex dating back to the 1st century AD, Lalitgiri is said to be one of the oldest Buddhism sites excavated in India.
Ratnagiri is considered as one of the best discoveries among Buddhist monuments and sculptures in India. The findings include three monasteries, eight temples and a number of votive stupas believed to be dating from the 7th century AD.
The Buddhist ruins here indicate that this place was a significant centre of the Hinayana, Mahayana and Vajrayana sects of Buddhism.
Dhauligiri holds a very important place in the spread of Buddhism. It is said that the plains adjacent to the Dauli hill is where the Kalinga war was fought in 262 BC, after which, Mauryan emperor Ashoka, one of the most prominent followers of Buddhism, renounced violence and took to Lord Buddha's path.