A social media storm has been brewing in India for much of March over videos of migrant laborers from the state of Bihar supposedly being bullied and even murdered in the state of Tamil Nadu.

The videos were fake, said the Tamil Nadu police. A controversy had been manufactured, said the Tamil Nadu government, by politicians from India’s governing Bharatiya Janata Party. “The spread of fake videos,” said the state’s chief minister, M.K. Stalin, on March 10, “was initiated by BJP leaders from North India.” He accused these unnamed leaders of having an “ulterior motive,” of trying to create unrest just after he had “spoken about anti-BJP parties uniting.”

With the BJP, led by Indian Prime Minister Narendra Modi, firm favorites to win a third consecutive national election in 2024, most analysts deem the formation of an ad hoc alliance of regional parties and the fast-fading Congress — which has governed India for the vast majority of its 75 years as an independent nation — as the opposition’s only hope.

If Modi remains by far India’s most popular politician, there is little love lost for him in Tamil Nadu. For years, whenever he visited the state, he would be greeted with signs that read, “Go back Modi.” But the BJP, which has never had an electoral presence at any level in Tamil Nadu, surprised observers last year by winning several seats in municipal elections in the state. It led the party’s state chief to declare his intent to turn the BJP into a third political force in a state that has been dominated by two parties since the 1960s, both of which emerged from an equal rights movement for oppressed castes. Despite the progress made last year, the BJP is currently in disarray in Tamil Nadu, with 13 party workers quitting dramatically just last week.