Introduction:
According to a rock inscription in Sanskrit composed around the second century CE, the Sudarshana lake was repaired by a king of the Shakas. This inscription provides valuable historical information about the ruler who undertook the renovation and sheds light on the political and cultural context of the time.

Explanation:
The Sudarshana lake is mentioned in an inscription found on a rock, which is written in the Sanskrit language. The inscription states that the lake was repaired by a king of the Shakas. Let us understand the significance of this information and its historical context.

The Sudarshana Lake:
- The Sudarshana lake is believed to be located in present-day Maharashtra, India.
- It is mentioned in various ancient texts and inscriptions as a prominent water body.
- The lake likely played a crucial role in irrigation, agriculture, and the overall economy of the region.

The Shakas:
- The Shakas were a group of Central Asian nomadic tribes who migrated to the northwestern regions of the Indian subcontinent.
- They established their rule in various parts of India during the first and second centuries CE.
- The Shakas were known for their military prowess and engaged in conflicts with other ruling dynasties of the time.

Historical Context:
- The repair of the Sudarshana lake by a Shaka king suggests their influence and presence in the region.
- It indicates that the Shakas had established political control over the area where the lake was situated.
- This inscription provides evidence of the Shaka king's commitment to the welfare and development of the region by undertaking the repair of a significant water source.
- It reflects the importance of water management and infrastructure during this period.

Conclusion:
The inscription in Sanskrit, dating back to the second century CE, reveals that the Sudarshana lake was repaired by a king of the Shakas. This information contributes to our understanding of the Shakas' presence in the region and their efforts to maintain and develop important water resources.