Till last year AY 25-26, in Schedule EI there is option for "Any Other" and Descripttion text. 

I used to use this option to mention "PPF Interest" . Just to be sure this is not employee PF ( EPF ) and also not matured amount either. It is just that PPF interest added to the account. 

Now this year AY 26-27, this "Any other" get removed.  Now to declare this PPF interest under except income or Schedule EI.  This is related to ITR-1