As a former employee of Cisco and having been in the Silicon Valley for 10+ years, I can say that I have witnessed extreme casteism and nepotism in Cisco. There was a saying I heard a few years back that one of the criteria to get hired in one of the Cisco guaranteed acquisition spinoffs is that you wear a thread (called Janeu - worn by high caste Hindus over their shoulder and hidden inside shirt). If there is one company in the valley where HR is totally absent and managers form a clique to abuse employees, it is Cisco. It is polluting the entire valley with its casteism and also by exporting its incompetent managers to other companies.
As far as I understand, you’re supposed to wear that thread in a way that would keep it hidden when wearing normal work attire. If that’s so, how would others know you had one? Would you secretly flash them at each other like a gang symbol?
I have seen some Indians when they are peeing they will first pull the thread over their ears and then pee, after they wash their hands they will put back the thread under their shirt.
that thread is bit long to carry and comes in between when you sit to take a dump in Indian style (squatting style). Hence it's suggested to put it on left ear to keep it up.