A mobile app development company in Cuddalore has to work across three very different trades. Inland, Panruti processes cashew and Vriddhachalam fires ceramics; on the coast, boats unload at the Cuddalore harbour every morning; and around Chidambaram, temple visitors and jewellery workers keep a busy town economy running.
Cashew is the product the state picked for Cuddalore under One District One Product, and the district export plan explains why. Cashew grows in the red soils around Panruti, Vadalur, Neyveli and Virudhachalam. Panruti alone has about 32 export-oriented units, 250 processing units and more than 500 cottage units, while over a thousand small processors across the district supply kernels to exporters. Most of these businesses track raw nut purchases, shelling yields and graded stock by hand.
Vriddhachalam is the other industrial name. The ceramic and refractory cluster there is about fifty years old and, according to the state's rural transformation study, has around 300 units making refractory bricks, tiles, insulators, electrical parts, decorative ware, terracotta toys and the agal vilakku lamps that sell in huge numbers before the festival season. SIPCOT's estate at Kudikadu near Cuddalore adds chemical and pharmaceutical units, and Neyveli's lignite and power complex sits inside the district.
The coast has 57.5 km of shoreline and 49 fishing villages. Boats berth at the Cuddalore fishing harbour and at landing centres such as Mudasalodai, Samiyarpettai, MGR Thittu, Parangipettai-Annankoil and Pettodai, and much of the catch travels by road to other districts and to Kerala. Chidambaram brings the Nataraja temple and the Pichavaram mangroves, a Ramsar wetland since 2022, along with imitation jewellery made by women's groups around Kurinjipadi and Melbhuvanagiri. Nearby districts have their own pages: Kumbakonam, Thanjavur and Kanchipuram.