Prefilled ITR

Yes and you must show it. It must have been reflected in your AIS. pl download AIS from new portal and check it

Yes and you must show it. It must have been reflected in your AIS. pl download AIS from new portal and check it

Which amount to be shown in ITR is it prefilled amount or else Derived amount?

Check with your AIS as it shows details. Download AIS from portal after logging in. If the actual amount of saving act interest is more than prefilled amount show actual amount

There is a correction in AIS amount and if feedback on portal accepted for correction of same,then declared modified value on ITR,will I receive any notice later on.

you fill correct amount as per your bank records.