How are shares allocated during IPO and what is the meaning of oversubscription in an IPO?

How are shares allocated during IPO and what is the meaning of oversubscription in an IPO?

Namaskar dosto. Angel Broking ke iss podcast mein aapka swagat hai. Traders toh IPO ka naam sun ke aasmaan mein chad jate hai. Inke excitement ki yeh wajah hai ki inke hishab se IPO shares ko kam daam mein lene ka mauka hai.