History:

Pachauris spread across different places probably shows how people with this surname moved around over time. Their presence in various areas hints at both people choosing to move and being forced to move. People might have moved to find better jobs or marry into families elsewhere, slowly spreading this surname. Wars or political problems might have also scattered families, leading to new communities where this surname became common. Where they settled likely depended on things like resources, trade routes, and family connections. Figuring out the exact paths and reasons would need a lot of historical digging.

Description:

Its likely connected to communities in northern India, especially areas around Uttarakhand and Himachal Pradesh. Saying this surname belongs to specific sub-castes or communities would be wrong.

This surname, Pachauri, might show up as Pachouri – a simple spelling tweak. Or, you might see a shorter form like Pachaur. Different regions and how names were written down might lead to other, slightly different spellings.