Covid-19: Why cases surged during monsoons in Delhi, Mumbai

Hindustan Times' National Political Editor, Sunetra Choudhury brings you the top stories you need to know. Sunetra talks about the number of Covid-19 cases in India so far; study on why cases surged during monsoons in Delhi and Mumbai; no improvement in water quality of Ganga; Bharat Biotech inks deal for nasal Covid-19 vaccine; better infra may boost cycle use post-Covid. Watch the full video for more.