Southern Railway Becomes Fully Electrified After the Pattukkottai-Karaikkudi Section Goes Live
Southern Railway has achieved 100% electrification of its Broad Gauge network, covering 5,068 route kilometres, after the final 71-km Pattukkottai-Karaikkudi section in Tamil Nadu was electrified; its statutory inspection was completed on 9 September 2026. Full electrification removes locomotive changes between diesel and electric traction, improves loco utilisation and cuts fuel imports. The zone's electric traction story began in Madras (now Chennai) on 11 May 1931, when it became India's second metropolitan city to adopt electric traction. The 46-km metre-gauge Nilgiri Mountain Railway, a UNESCO World Heritage site, stays outside the target because electrification there is technically unfeasible.
Indian Railways has 18 zones; Southern Railway, formed on 14 April 1951, was the first zone created and is headquartered at Chennai | The Nilgiri Mountain Railway was inscribed on the UNESCO World Heritage List in 2005 under the Mountain Railways of India | Indian broad gauge measures 1,676 mm