Chronology of Sudarshana Lake
| Period | Ruler | Contribution |
| Mauryan | Chandragupta Maurya | Original Construction: Built by his governor, Pushyagupta. |
| Mauryan | Ashoka | Expansion: His governor, Tushaspha, added irrigation canals. |
| Saka | Rudradaman I | 1st Major Renovation: Around 150 AD, he rebuilt the dam after a massive storm using his own funds (without forced labor). |
| Gupta | Skandagupta | 2nd Major Renovation: Around 455–456 AD, the dam burst again. Skandagupta's governor, Parnadatta, and his son, Chakrapalita, repaired it. |
Key Details about Skandagupta's Repair
The Cause: Heavy rains caused the lake's embankment to burst in 455 AD, leading to a crisis for the people of Saurashtra.
The Execution: Skandagupta appointed Parnadatta as the Governor (Goptri) of the region. Parnadatta's son, Chakrapalita, who was the magistrate of Girnar, oversaw the actual engineering work.
The Commemoration: To celebrate the successful repair, Chakrapalita also built a temple dedicated to Lord Vishnu (Chakrabhrit) on the banks of the lake in 457 AD.
This history is famously recorded on the Junagadh Rock Inscription, which is unique because it contains records from three different dynasties (Maurya, Saka, and Gupta) all on the same boulder.
