Hi @NIKH0502 Welcome to the community!
Introducer in HUF account opening form is often someone who has an existing relationship with the brokerage firm (Angel One) and is trusted by them. This process helps the brokerage verify and validate new account openings, ensuring that they come through reliable sources.
You can refer to this post for further details to open HUF account: [UPDATED] Open HUF demat account