I’m married to a Bharadwaj. To put it another way, I’ve “bailed out” a Bharadwaj. Let me explain.
There is a concept of “gotras” among “Caste Hindus”. Each person is supposed to have a paternal ancestral line to a rishi, and that rishi’s name is your gotra. For example, I’m supposed to be a descendant of the sage Haritsa (such an obscure rishi he doesn’t even have a Wikipedia page). And so my gotra is “haritsa”. Knowledge of your own gotra is important when you go to a temple to get “archane” (where you pay 10 rupees, give some vital stats and get sugar candy in return) done. It is also important when you are going to get married.
So Hindus have a weird way of defining cousins, especially for the purpose of marriage. Only male ancestry matters, and male brotherhood also. If you examine this further, everyone who has the same gotra as you (and hence are related to you by a paternal line) are your cousins. Sisters and mothers don’t particularly matter in this definition of cousins, hence the widespread incest, especially in Karnataka and Andhra Pradesh. There is one important exception of course – your mother’s sister’s siblings are also your cousins, though no one bothers keeping track of such relationships over more than a generation.
Like in any other good religion, Hinduism doesn’t allow you to marry your cousins. And due to the weird definition of cousin, you effectively can’t marry someone from your gotra. That is supposed to be incestuous. If you have any doubts about this, please travel to Haryana and ask any of the khap panchayats there.
So among Brahmins (due to lack of sufficient data points, I’ll restrict my discourse to Brahmins), the most “popular” gotra is Bharadwaja. It is either the Rishi Bharadwaja himself, or some of his descendants, or all of them collectively, who did a “Genghiz Khan”. Rather, one should say that Genghiz Khan did a Rishi Bharadwaja. Because of this, Bharadwajas constitute a really large proportion of Brahmins. I’m not sure of exact statistics here, but they are easily the largest Brahmin Gotra.
So now, “rules” dictate that you should marry within your caste, but outside of your gotra. And this puts the Bharadwajas at a great disadvantage, for so many other Brahmins are Bharadwajas, that the sample space from which to look for a spouse is severely restricted indeed. I know of a cousin (mother’s father’s sister’s son’s daughter) who is a Bharadwaja, and who spent a really long time in the arranged marriage market. As I told you, restricted sample space. That way, people like me who belong to obscure gotras should consider ourselves lucky, I guess.
So if you are a Brahmin, and not a Bharadwaja, please help out a needy fellow-Brahmin, who may otherwise have to spend a really long time in the marriage market (arranged or otherwise) only because one of their ancestors happened to be particularly prolific. And this is one thing in which I can proudly claim to lead by example.
PS: The proportion of Bharadwajs among Brahmins might be overstated due to the sheer number of them who put the name of their Gotra as their surname. I don’t think putting gotra as surname is common among any other Brahmin gotra.