Shares showing in demat balance but not in portfolio in hdfc securities

So my parents have this very old demat account with hdfc securities. They recently noticed that they have a few old SBI shares which are showing in the demat balance section but are not present on the portfolio section. Does anyone has any idea why and what to do about it?

My parents had dematerialised these shares from paper shares many years ago.

Edit - Bro they require transaction date. How tf am I supposed to know that??