Hyderabad Metro

Hyderabad Metro is the world's largest metro built under a single PPP-BoT concession — a 69 km network across three corridors (Red, Blue, Green) executed entirely by Larsen & Toubro under a 35-year build-operate-transfer agreement with the Telangana government.

The project was sanctioned in 2010 and was the largest infrastructure PPP awarded in India at the time, valued at ₹14,000 crore (final cost: ₹18,800 crore). L&T won the concession ahead of competitors like GVK and Reliance, and set up L&T Metro Rail Hyderabad (LTMRH) as the operating subsidiary. Civil construction began in 2012 with phased revenue services from late 2017.

The full network comprises three lines: Red Line (Miyapur-LB Nagar, 29 km), Blue Line (Nagole-Hitech City-Raidurg, 27 km), and Green Line (JBS-MGBS, 11 km). All three are fully elevated — totalling 69 km of viaduct on bored cast-in-situ pile foundations through Hyderabad's basement granite. The system uses Hyundai Rotem-built 3-coach trainsets running on 25 kV AC overhead catenary.

The project hit a cluster of execution challenges: heritage-protected zones (the Charminar area required alignment changes), telugu-political controversy when Telangana split from Andhra Pradesh in 2014, and a Covid-19 ridership collapse that forced LTMRH to renegotiate concession terms. Daily ridership stabilised at ~440,000 by late 2024 — below the 1.5 million original projection but recovering. Phase 2 (additional 76 km across 5 lines) is under tendering.