https://en.m.wikipedia.org/wiki/Mumbai–Ahmedabad_high-speed_rail_corridor
Planned opening December 2023; 3 years' time
Cost: approx 3.3 billion USD
Technical Line length 508.18 km (315.77 mi)
Character Elevated, underground, undersea and grade-separated
Track gauge 1,435 mm (4 ft 8 1⁄2 in) standard gauge
Electrification 25 kV AC, 50 Hz, overhead catenary
Operating speed 320[1] km/h (200 mph)
VS
https://en.m.wikipedia.org/wiki/California_High-Speed_Rail
Status: Abandoned. After 10 years voting yes (collection of) on taxpayer funded bonds.
Budget projections: 68.3-98.1 billion USD
[..]Technical System length c. 171 mi (275 km) (central leg) c. 520 mi (840 km) (Phase 1) c. 800 mi (1,300 km) (proposed including Phase 2)[1]
No. of tracks 2 (4 in stations)
Track gauge 4 ft 8 1⁄2 in (1,435 mm) standard gauge
Electrification 25 kV 60 Hz AC overhead line[2][3]
Top speed 220 mph (350 km/h) maximum 110 mph (180 km/h) San Francisco–Gilroy[4] 110 mph (180 km/h) Los Angeles–Anaheim[5]
[..] On February 12, 2019, Governor Gavin Newsom in his first State of the State address announced that, while work would continue on the 171-mile (275 km) Central Valley segment from Bakersfield to Merced, the rest of the system would be indefinitely postponed, citing cost overruns and delays.
Project costs have escalated significantly from an initial estimate of $33.6 billion in 2008 for the Anaheim to San Francisco section according to the 2008 business plan and a $40 billion total figure given to voters whose approval was sought in 2008. The 2008 business plan proposed a 2028 completion date for Phase 1 and a one-way fare of $55 from Los Angeles to San Francisco. In 2012, the Authority re-estimated the project's cost at $53.4 billion ($2011) or $68.4 billion (YOE). Federal funds are dependent upon rail service, though not necessarily high-speed, starting on operational rails by December 2022. In 2018, the Authority pushed estimated costs to between $63.2 billion and $98.1 billion (YOE) and delayed initial service to 2029, with Los Angeles to San Francisco service in 2033. Environment reviews for the entire San Francisco to Anaheim route would continue.The cost for Bakersfield to Merced is $12.4 billion.[..]