Indians will not ask outright what caste you are, as it’s seen as overly discriminatory, but they use more subtle methods to identify your place in the caste structure.

“Sometimes they ask, ‘Are you vegetarian?’ If you say yes, they ask are you vegetarian by birth or by choice, before getting into which village you come from, because sometimes the village gives up your caste,” Sam said.

Another method described to VICE News is the pat on the back to see if the person is wearing a Juneau, a sacred white thread typically worn by the upper castes in India.

Higher-caste Indians will also search social media accounts to ascertain a job candidate’s religious views or diet.

https://www.vice.com/en/article/3azjp5/silicon-valley-has-a-...