This Ashokan Great Stupa was vandalized sometime in the second century BC, but was repaired and expanded during the later period of the Sunga Empire (85 BC–75 BC). At that time, the dome was flattened near the top and crowned by three superimposed parasols within a square railing. The dome was set on a high circular drum meant for circumambulation, which could be accessed via a double staircase. In addition to their renovation of the Great Stupa, the Sungas constructed the Second and Third stupas, as well as other religious buildings