The list is long.

You need tons of people with tons of little bits of specialization, tons of factories run by experienced people, tons of workers for those factories willing to put up with rubbish, you need all the support: capitol, financial systems, export sophistication etc..

Surely, any group of people well enough organized could build maybe one such city of a few million people in ten years, but that's small.

In the meantime, in India, they can't get the electricity grid to work. Factories? No way.

Which is why we see a lot of software outsourcing in India, factories in China.

For assembling Nike shoes or something, other parts of Asia might already start to make sense. But for real manufacturing of most things ... it's China for the foreseeable future.