Indian media on October 21 prominently featured the severe air quality in Delhi post-Diwali, with multiple sources reporting AQI exceeding 400 and PM2.5 levels hitting a four-year high in the morning. Political parties, including BJP and AAP, engaged in accusations regarding the causes throughout the day. Separately, international tensions continued to be a focus, with Iran's Supreme Leader mocking Trump's bombing threats, and Trump warning Hamas of 'eradication' if the Gaza ceasefire failed. Later in the day, Afghanistan dismissed Pakistan's proxy war claims as illogical, while domestic political developments in Bihar's Mahagathbandhan also drew attention.