By keeping wages low and taxes high. hope this helps.
Holy Fairs: The Kumbh Mela (the "pitcher festival") is one of the holiest of Hindu pilgrimages that is held four times every twelve years; the location is rotated among the four cities of Prayagraj, Haridwar, Nashik, and Ujjain. Shravani Mela of Deoghar and Pitrapaksha Mela of Gaya are also notable holy fairs.
Answer:
An estimated total of 70–85 million people perished