Udangudi is a Panchayat town in Thoothukudi district in the Indian state of Tamil Nadu.

This railway line was laid primarily to take advantage of collecting the Palm Juice extraction going around Udangudi and British established a Jaggery Factory near Kulasekaran pattinam for export market.

The town is an example of peaceful co-existence with population of Muslims, Christians and Hindus distributed in equal proportions and the entire people live in harmony.

Years back Udangudi and its suburbs had a lot of Palmyrah groves, where the main occupation was to extract Palm Juice and prepare Karuppukatti or KarpagaKatti (Palm Jaggery, presumably karuppukatti is a transformed form for "Karumbukatti" sugar(cane)piece).

2x660 MW, Stage-I LOA issued to M/s BHEL for Design, Engineering, Manufacture, Supply, erection, testing and commissioning of complete 2x660MW coal based Supercritical thermal power project, Udangudi Stage I, on Engineering, Procurement and Construction basis for a value of Rs.7359 crores on 7.12.17.