What is HUF? What are the advantages of opening a trading/demat account which is a HUF?

thank you sir for your reply. if friend is secondary holder of joint bank account & he applies through IPO ASBA from joint account …will his IPO application consider Valid?
Note - in this scenario, he has individual demat account & his another individual bank account is linked to demat. But he’s applying for IPO from joint bank a/c where he’s secondary holder.