Korkai was the coastal capital of the Pandyas. The Pandyas were one of the four major dynasties that ruled over the southern region of India during ancient times. They were known for their maritime trade and had several important ports along the coastline.

Coastal Capital of the Pandyas:
Korkai, located in present-day Tamil Nadu, was the coastal capital of the Pandyas. It was a significant port city and played a crucial role in their trade and commerce activities. Korkai was strategically located on the banks of the Tamraparni River, which facilitated easy access to the sea and made it an ideal location for maritime trade.

Importance of Korkai:
1. Trade Hub: Korkai served as a major trade hub for the Pandyas. It was well-connected to other important ports in South India, as well as to international trade routes. The Pandyas engaged in extensive trade with various countries, including Rome, Egypt, and Southeast Asian kingdoms.

2. Export of Goods: Korkai was known for its flourishing trade in various commodities. The Pandyas exported goods like spices, pearls, textiles, ivory, precious stones, and exotic fruits. These valuable products were in high demand in foreign markets, making Korkai a prosperous city.

3. Economic Prosperity: The trade activities in Korkai brought immense economic prosperity to the Pandyas. The revenue generated from trade helped in the development of infrastructure, including the construction of temples, palaces, and irrigation systems.

4. Cultural Exchange: The maritime trade facilitated cultural exchange between the Pandyas and foreign civilizations. The influx of foreign traders and travelers brought new ideas, technologies, and cultural influences to Korkai, enriching the local culture.

5. Decline: Over time, the importance of Korkai as the capital of the Pandyas declined. The reasons for this decline include political instability, invasions by other dynasties, and changes in trade routes due to geopolitical factors. Eventually, the capital was shifted to other cities like Madurai.

In conclusion, Korkai served as the coastal capital of the Pandyas and played a significant role in their trade, economy, and cultural exchange. The city's strategic location and thriving maritime trade made it a prosperous center of commerce during ancient times.