Due to agreements with the patent holder, Cephalon, that were made in 2005-2006 several generics manufacturers are now allowed to sell generic Modafinil. I have found confirmation that the manufacturer Teva has begun selling generic Modafinil, though I haven't seen news about other manufacturers. However, the article also, says that Cephalon is a subsidiary of Teva, so perhaps this won't have an effect? The Modafinil patent is set to expire in April 2015.
So be cautious. But don't use generalized evidence when you have specifics. I personally trust this specific site because of the testimonials of some long-standing reddit users who have ordered it. You should decide on your own if that's good enough for you.
Also note that 75% of fake drugs originate in India, not that 75% of drugs from India are fake.
Edit: It came in a while ago and I've used it a few times. Works for me.