I got the below reply from ICICI.
We inform you that, as per the revert received from team concern, there is no option to download a PPF Annual Statement through Net Banking channel. It was present earlier, but from Financial Year 2022, standalone PPF annual statement has been discontinued and was combined with Current Account Savings Account (CASA) statement which is downloadable only on monthly basis.
Can anyone explain where to get CASA statement and if PPF transaction entries are shown in that statement?