Explanation:

The Portuguese established a trading post in Pulicat in 1502 with the help of the Vijayanagar rulers. They built a fort there and held this fort until 1609 when they were defeated by the Dutch.
Pulicat is within the Pulicat Lake Bird Sanctuary. Every year between the months of October and March, thousands of migratory birds land here. Though many species can be seen, the Flamingos are the most visible, covering the swamps surrounding the lake, giving it a pink tinge.