“When we receive a valid legal request, we review it under both Twitter rules and local law. If the content violates Twitter’s Rules, the content will be removed from the service. If it is determined to be illegal in a particular jurisdiction, but not in violation of Twitter rules, we may withhold access to the content in India only. In all cases, we notify the account holder directly so that they are aware that we have received a legal order pertaining to the account”
A spokesperson for the IT Ministry said that this was done to curb the flow of misinformation during the pandemic. However, many of the posts were far from misinformation and merely highlighted the glaring lapse in the medical infrastructure, such as the lack of beds, oxygen, and underreporting of COVID-19 deaths. While it is still possible to view the said posts, one will require an IP address based outside of India, which can be acquired via a VPN service. You can find the complete list of the Tweets in question here (via The Verge).