I feel like that is the case with most ethnic restaurants here. Mexican is definitely that way.As an Indian I have to say yes. Also, I have to say that my mum makes the best Indian food ever.
Many people probably don't know that the "curry" you get in an Indian restaurant isn't anything like curry in an Indian home. It's more complex, often thin and mixed with other items on rice.
If you want a bit of fun, try eating an Indian meal with just your hands. No utensils.