Disclosing this to reporters at Amaravathi in Guntur district on Sunday, ASI Hyderabad Region Superintending Archeologist D. Jithendra Das said that the discoveries were made at Yennammapadu dibba in Ghantasala mandal.
The six-member ASI team, headed by Dr. Das, was on a three-month excavation mission from March to May.
Among the discoveries was a three-dimensional limestone carved structure, embellished on the dome portion of the stupa and which was an auspicious object for the Buddhists.