Their bill came to $65 and they left me a $1 tip. Indians!
Why do you think this is a problem specific only to Indians and not other races?
I'm talking about them because they are so poor and cheap.
It's okay to be upset when customers treat you unfairly, especially when you are dependent on tips for your income.  However, we shouldn't assume that peoples' races are what makes them stingy.  People of all races are just as capable of cheating a service provider, and it's wrong no matter who does it.