I'm researching Indian football since this >>41180 question made me curious.
The fact that the current Indian national team does not include a player who plays for any notable team (basically they play only for Indian teams) tells a lot. I'd assume it's relatively easy to get into British leagues from there, procedure/bureaucracy wise, which means they basically not good enough.
Checked some result of their national team, they got beaten by North Korea couple years back. Not very shiny. Teams which qualify for World Cups, such as Japan, beat them bad normally. I would say their football is worse than Hungary's.
Judging by the tone of Wikipedia articles they are optimistic about their football however, sometimes calling their top players on various colorful names, liek "Sikkimese Sniper".

Now players of Indian origin, born in Europe, seems to perform all right. Sometimes. They even called up for European national teams (found France and Norway). They can be found in the rosters or top teams like Feyenoord, Ajax, and Premier League clubs. Tho haven't noticed any of them presented something exceptional.

Picrel current captain of their national team (Captain Fantastic). Wikipee says he can boast with the fact he scored the second most goals on international fixtures (among active players), after Christiano Ronaldo.