"ROOT" cause of chauvinism/regionalism is CONGRESS.Power hungry Nehru preferred partition over handing over power to Jinnah which culminated into genocide of much bigger proportions which was commited by the jehadi,fanatic ,barbaric armies of Ghenghis Khan,Taimur Lang,Babar,Muhammad Ghouri,Muhammed bin Kasim,Aurangjeb etc put together.In 1947 Hindus /Muslims killed each other forgetting the "root " cause -Nehru :great "drama baj ".Besides the genocide his power greed resulted in uprooting of crores of indians from 100% irrigated land of their forefathers for the time immemorial after making them penny less paupers.Such unfortunates women folks were gang raped & subjected to unmentionable insults.These refugees have to face HOSTILITY/INSULTS of LOCALES (where ever they settled) on this side of India due to fear of losing/sharing employment /business with refugees. But monopolistic media never highlighted this to save their Demon god Nehru.Congress due to its policy of "divide & rule " and dishonesty for welfare of SC/ST/OBC created regionalistic/ casteist Mayawati/KashiRam /Mulayam/Lalloo/ Paswan etc.Now it is grooming Kirori Singh Bainsla as Mayawati of Gujjars.But monopolistic pro commie/congi media (CNN IBN/NDTV/TOI/HT/ Outlook etc)which is worse than MTLR of Rwanda never highlights crimes of its political masters-commie/congi gang.
