revise return filling

1. If after filing return for AY 2019-20 someone finds that he has not shown his Life insurance money back in income from other sources , how can he show this during submitting revise return and how can he claim exemption from the money back amount..


2. How can one show recurring interest in return? 

Adding in savings interest slab or in deposit interest slab ?


3. If anyone thinks to revise his return and so starts to edit and simultaneously saves the draft but does not submit it lastly,

Can there be any problem with his earlier submitted return for that particular AY ?