[adamsmark]

How hard is it to fake being of a higher caste?

[sreevisakh]

Really hard. There are so many caste markers. Surnames are the least of it. Speaking accent, diet, clothing and several other habits can some among them. Even worse, people who believe in castes are part-time detectives who often do background checks on others. At least, that's the case in India. I don't know how bad it is in the US - but I'm sure there will be some.

[shultays]

Surnames are often used for determining caste apparently so as hard as changing your surname