Depends on what you mean by "collapse." You can use faint, subside, breakdown, crumple, etc.
Answer: its a form of saying hello in English, so Ello is a form of hello in English mainly used in Britain for the quote “Ello mate”
Cultures, Religions, Or the region they are in ... I don't know if these are any of the answers
Is this Puja in your complex...Do you live in Kolkata