FB India is currently censoring posts calling for the resignation of the Prime Minister https://twitter.com/srinivasaiims/status/1387472195316711426
I just used a VPN to check and this is still active. Outside of India, most posts using this hashtag are about the censorship
Facebook already excludes certain hashtags associated with misinformation (eg #adrenochrome) from search results.

There's a possibility this hashtag was excluded in error, but given the company's history in India it doesn't look great.
Facebook has just restored the hashtag, per @andymstone https://twitter.com/andymstone/status/1387491715171422215
Update from Facebook on this: "We temporarily blocked this hashtag by mistake, not because the Indian government asked us to, and have since restored it.”
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