Minerva restaurant in Herndon, Chutney's and Curry & Kabob. You will get to see some bad attitude people working at the front desk. I don't know how these people are managing the Business. Even Amma Vegetarin restaurant in Vienna is also bad.
Be careful with this guy while charging your credit card. He charges you 8 % state tax instead of 5%, and when you ask them why extra you get some stupid answer.
Even the people at chutney's in Herndon, they don't accept Credit card. Once I made a Order for more than $30 still they don't accept cards, that made me too rush to ATM. These people are trying to avoid taxes on the Business.
So far the Best restaurant found is in Fairfax, Saravana palace. It is a Veggie place. You will see people working always smiling and clean.
Mayuri is better than Minerva, but it is getting crowded and you have to wait in line for 30-40 min over the weekends other than that it is good.