The Rudradaman Inscription is a significant historical source, notably mentioning the Sudarsan lake and associated structures.
The inscription details that a dam was built across the Sudarsan lake. This engineering feat was undertaken primarily to facilitate and improve the water supply to the surrounding countryside, supporting agriculture and the local population.
Historical consensus, supported by the details within the Rudradaman Inscription itself (which chronicles repairs and maintenance over time), attributes the original construction of the dam and lake infrastructure to the reign of:
Although the inscription was issued during Rudradaman's time and mentions repairs undertaken by him and others (like Pushyamitra Shunga and Kanishka), the foundational work of building the dam for water management dates back to Chandragupta Maurya's rule.