This is the main archaeological site that was discovered during excavations in 1971-76. Inscribed seals discovered here prove that this was the location of Kapilvastu, the capital of the Shakyas. Remains of a stupa were also found here. Excavation of the main stupa yielded two relic-caskets containing charred bones.
The proximity to the ancient site of stupa at Piprahwa, where the sealings with the legend Kapilvastu were found, the impressive structures, and large quantity of antiquities hardly leave any doubt that they were the residential complex of Suddhodhana and his predecessors.
Excavation at Salargarh, 200 m from Piprahwa, has revealed a monastery of Kushana period.