The world’s most powerful trains are finally making it to their destinations.
The first batch of 10 new trains rolled into the country on Wednesday, the end of a nearly four-year wait.
But the project hasn’t been without its critics.
Some worry that it will create a huge bottleneck for other new, high-speed rail projects in the country.
Some of the new trains are being built in the most environmentally-sensitive parts of the country, and some of them are also being built near dangerous urban areas, like the former site of the largest coal mine in the world.
“The world’s biggest infrastructure project has been postponed,” said the head of the railway union in India, Suresh Prabhu.
“This has been a huge disappointment for the people of India and we will continue to be in touch with the authorities to discuss our next step.”
In a letter to the prime minister, the railway unions urged him to cancel the project.
The union said the first phase of the project would cost between $8 billion and $10 billion, but that it is “unrealistic to think” it will yield the money to cover the cost of the second phase, which will run until 2036.
The Indian Railways (IR) said it is considering various options to address concerns about the safety of the trains, and that it hopes to finalize the deal with the unions in the coming days.
But, according to the government, the second and third phases will cost more.
A spokesperson for the railways said the project has “taken time and a lot of hard work” and will now proceed “as scheduled.”