Hi @abhijeetp,
Could you please share more details about your requirement?
For your first question, do you want to hide items which are not yet approved from the other contributors of the list?
If yes, you could go to list setting in sharepoint and set the list require content approval for submitted items and set the user who could see the draft items in the list as below:
For your second question,I couldn't understand you from your discription,please share more details so we would try to provide a proper workaround for you.
Best regards,
Alice
