Adurru (or locally DubarajuGudi) is a 2400 year old Buddhist site in Razole taluk of East Godavari district of Andhra Pradesh close to the banks of river Vainetaya, a tributary of river Godavari river very close to the Bay of Bengal. The foundation of the stupa here was laid by Sanghmitra, Ashoka’s daughter on her way to Sri Lanka. When we trace Sanghamittā and the Sri Mahā Bodhi tree's sea route. We show the port of Visakhapatnam, which the Sri Lankan Dambakolapatuna memorial shrine map shows as a stop. This area has several ancient Buddhist sites from the period. We also show one more potential stop, the 2,400 year old Buddhist site of Adurru, which records a tradition of Sanghamittā Therīs stopping there on her journey to lay the foundation stone of the stupa.
History of ancient Buddhist site in South India
On the south bank of the river Krishna lies Nagarjunakonda, 149 km from Hyderabad. This was the home of a famous Buddhist savant Nagarjuna, who lived here 2,000 years ago. Excavations have brought to light the relics of a great Buddhist center, including stupas, monasteries, and a university, that once spread over the and hills. What is more, it had a Mahastupa-- containing, the sacred relics of the Buddha. The numerous interesting finds of this place are preserved in a museum on a hill, shaped like a Buddhist Vihara. The Nagarjunasagar, a multipurpose project, is the tallest masonry dam in world.
Andhra's Buddhist roots are old, and the doctrine came there in the lifetime of the Buddhist sites survive today. One of the greatest Buddhist sites is the Nagarjunakonda. With the coming up of the Nagarjunasagar Dam, this ancient Buddhist site was getting submerged. As a significant move, the structures were relocated to a hill, which now sites as an island on the reservoir. The hill was christened Nagarjuna, the founder of Mahayana Buddhism. A museum on the island, shaped like a Vihara, displays reliquary from the Buddhist center of Sriparvata and Vijaypuri, while the remnants of a Buddhist University have been relocated to Anupu, 4 km from here. The most important Buddhist site in Andhra is Amaravati which was the capital of the Satavahanas. The largest stupa in India is housed here.