It seems there's a big migration of Indian Internet users from Twitter to Mastodon. A few explanations by Vidyut Gore* Why I adopted Mastodon
There is this strange phenomenon in India, where you are now expected to justify using a new social network and discontinuing with an older one. Many Twitter users, unhappy with Twitter, have chosen to create accounts on Mastodon instances. The discontentment with Twitter is hardly a recent thing.