Explanation:

- Kolleru Lake is one of the largest freshwater lakes in India.

- It is located between the Krishna and Godavari river basins.

- The lake plays a crucial role in the regional ecosystem and supports a rich biodiversity.

- Option 1, Tamil Nadu: This state is known for its lush coastline, but Kolleru Lake is not located here.

- Option 2, Kerala: Known for its backwaters, Kerala is home to several lakes, but not Kolleru Lake.

- Option 3, Madhya Pradesh: It has its own lakes, but Kolleru is not among them.

- Option 4, Andhra Pradesh: This is the correct location of Kolleru Lake.