The Union Government inaugurated various rail sections in Tamil Nadu on July 26, 2025. These are:
Electrification of the Madurai-Bodinayakkanur Gauge Conversion Project. It involves conversion of 90.41 km long Madurai-Bodinayakkanur metre gauge (MG) rail line into broad gauge (BG) in Tamil Nadu at an estimated cost of Rs 5.92 billion. Part estimate for Electrification of Madurai-Bodinayakkanur section has been sanctioned by Railway Board (RB) for Rs 985.3 million.
21 km Nagercoil Town–Kanniyakumari section of the Trivandrum-Kanyakumari Rail Doubling Project. It involves doubling of an 86.56 km long rail line from Thiruvananthapuram in Kerala to Kanyakumari in Tamil Nadu at an estimated cost of Rs 37.85 billion.
12.87 km long Aralvaymozhi–Nagercoil junction and 3.6 km long Tirunelveli–Melapalayam sections of the Madurai-Tirunelveli-Nagercoil-Kanyakumari Line Doubling-cum-Electrification Project. It involves doubling and electrification of the 256 km long Madurai-Tirunelveli-Nagercoil-Kanyakumari rail line in Tamil Nadu. The project is part of the Chennai-Kanyakumari doubling project. The Ministry of Railways (MoR) approved doubling for Chennai-Villupuram-Trichy-Madurai sections in different phases and the works are ongoing in different stages.