Key points are not available for this paper at this time.
In 2019, around 240 million pilgrims across the world participated in the Kumbh Mela at Prayagraj in India and this number is likely to increase in the next Kumbh Mela in 2025. The huge gathering poses challenges by various pollutants and facilitates the easy transmission of infectious diseases.
Kanaujiya et al. (Fri,) studied this question.