What are singhanias doing in Jaunpur.

Bollywood has hyped this surname so much that whenever I think of singhania, an image of a Delhi or NRI industrialist come to my mind. I never thought singhanias would reside in Jaunpur that also have a house behind some cowshed. For someone who has a deep interest in caste dynamics and surnames, after a while I came to know that Chauhans from UP and Chauhans from Rajasthan are poles apart , same goes for Sharma and Gupta surnames from eastern UP who are again poles apart from Sharmas and Guptas belonging to Haryana-Punjab belt. I feel that along with fake allegations and mental torture coupled with financial exploitation,poor Atul also was victim of mistaken identity as the marriage was matched from an online portal.