Here are a few districts in Tamil Nadu known for their exceptional food:

Madurai is famous for its street food, including Jigarthanda Kari Dosa, Paruthi Paal and the iconic Madurai Malli idli.

Chettinad cuisine : which includes dishes like Chettinad Chicken, Paniyaram, and Karaikudi Chicken.

Thanjavur : famous for its vegetarian cuisine, particularly the traditional South Indian meals served on banana leaves.

Tirunelveli : is famous sweets and snacks, Tirunelveli Halwa.

Coimbatore : Kongunadu cuisine, which is Popular dishes include Pollachi Chicken, Banana Bonda, and Arisi Paruppu Sadam.

Chennai : offers a mix of traditional Tamil, South Indian, and various international cuisines. It is famous for its idlis, dosas, sambar, vadas, and filter coffee.

Tiruchirappalli : A famous snack originating from the town of Manapparai, known for its crispiness and flavor.