Why aren't Magh and Gangasagar Melas being banned?

The Magh Mela and Gangasagar Mela in Prayagraj and West Bengal respectively are on schedule despite rapid spike in the cases of Coronavirus. But why would the governments allow such huge gatherings and then impose stricter COVID norms simultaneously? Won't the congregations become super spreaders? Take a look at the report for details. On the other hand, High Court is likely to hear petition against the fairs, demanding bans.