Tata Motors is a subsidiary of the Tata group. The latter is worth at least USD100B which makes it larger than BMW. The former and its subsidiaries also make everything from lorries, buses, and heavy lifting equipment to a number of other road cars besides the Nano. The Nano is in many ways considered a relative failure in India and it's their other cars which are more popular.
While export might be a possibility, the article clearly mentions that the Chinese domestic market alone demands 40000 imported JLR models which will very likely increase dramatically when they are produced locally and sold with cheaper price tags. A little googling would have also revealed that China is fast becoming the company's largest market and that JLR is expanding its factories in England and hiring more people.
If anybody needed an example of FUD, the OP would be an apt candidate.