Chennai-Hyderabad Travel Time to Shrink To 140 Mins As TN Set To Clear Path For Bullet Train

The ambitious high-speed rail link between Hyderabad and Chennai has inched closer to the planning finish line, with the South Central Railway formally forwarding the final alignment proposal to the Tamil Nadu government. The approval from the state is the last major step before the Detailed Project Report (DPR) is locked in, The New Indian Express reported.

An official told the English daily that the report will be ready within a month of Tamil Nadu granting its consent. I Jayakumar, Member-Secretary of the Chennai Unified Metropolitan Transport Authority (CUMTA), confirmed that the alignment had been tweaked at Tamil Nadu's request, paving the way for a dedicated stop at Tirupati. The originally proposed route through Gudur has been dropped.

A Corridor Designed to Transform South India's Connectivity

Stretching 778 km, the high-speed link aims to shrink the Hyderabad-Chennai journey from an overnight 12-hour trip to just under 2 hours and 20 minutes. In Tamil Nadu, the corridor will touch down at two stations - the iconic Chennai Central and another proposed near Minjur along the Chennai Ring Road. The railways has also sought nearly 50 acres around each station to develop commercial precincts and integrated mobility zones, as per the report.

The South Central Railway, in recent letter to the state transport department, urged early sign-off on land acquisition norms, station locations, and inclusion of the project in Tamil Nadu's long-term infrastructure blueprint. The railway zone has also asked for joint inspections with state agencies to ensure the Final Location Survey stays on its time-bound schedule.

TN Stretch: 61 km, 12-km Tunnel, Zero Forest Land

The portion of the corridor running through Tamil Nadu spans 61 km and includes one of the project's most challenging components - an 11.6-km tunnel that will undergo extensive geotechnical assessment. Railway engineers point out that no forest land falls within the 223.44 hectares earmarked for the state stretch, a factor expected to smoothen environmental clearances.

The proposed alignment intersects 65 roads and 21 high-voltage power lines, requiring coordination with multiple state bodies. Construction activity will also need careful planning in populated northern suburbs, including Pondavakkam, Thatchoor, Vichoor, Mathur, and Tondiarpet.

Part of a Bigger High-Speed Rail Expansion

The Chennai-Hyderabad alignment is one of two high-speed routes planned in the southern region, along with the Hyderabad-Bengaluru line. Together, they form a crucial part of India's broader push to take high-speed rail beyond the Mumbai-Ahmedabad corridor and connect emerging growth centres across Andhra Pradesh, Telangana, Karnataka, and Tamil Nadu.

For Chennai, the project represents a pivotal integration with India's future high-speed rail grid. With two major stations proposed and significant urban interfaces, the city is preparing to position itself as a central hub in the south's fast-evolving rail ecosystem.