Well, You both have inaccurate information.
Chemnovatic is not extracting nicotine in their labs. They do not extract nicotine at all. They do buy extracted nicotine from someone else.
There is one company that extracts outside of India. Actually, the extraction starts in India and then goes to Poland, I think, for further extraction.
While the vast majority of nicotine is extracted in India, it is not the same source. There are a handful of companies that extract USP Grade nicotine, all but one does the extracting in India. So, while all but one company extracts USP grade in India, there are a handfull of companies that do it, not just one single source.
There are other extractors, in other countries like the US, but they are not USP Grade.