https://www.theguardian.com/technology/2021/apr/28/facebook-blocked-resignmodi-hashtag-india-coronavirus

Users based in India noted on Twitter that the #ResignModi hashtag had been blocked from view on Facebook

A hashtag calling for the resignation of the Indian Prime Minister, Narendra Modi, was briefly blocked on Facebook on Wednesday, hiding more than 12,000 posts critical of the Indian government as the coronavirus pandemic spirals out of control in the country.