Debenture interest

hi
I have a lot of debentures(Bonds) in different companies. But i only know their maturity date but don’t know their interest payment date. How do I track their interest payments by payment due date?

For Sovereign Gold Bonds (SGBs) check here:- https://www.rbi.org.in/Scripts/NotificationUser.aspx?Id=11865&Mode=0

For cooperate bonds and other government bonds check here:- https://goldenpi.com/bonds/INE683A08051/the-south-indian-bank-limited-1375-bond-yield?src=view_details