Hi @arunm1424,
this will be a bit more difficult.
When I understand you correct you got a basic form of Email, let's say table 1, and want to relate that Email in another form to your contact entity.
What you can do is create a lookup inside your table 1 to your accounts. Than create some column and use the formula data type and enter something like columnname.name to get the info of the contact entity. You can than adjust the form and diplay all information needed.
The only question is how do you set up the email in your new entity? In case it's done dynamically over the page, create a PowerAutomate Flow which has a look at the mail filters the contact table and write the lookup in the new column.
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Hope that helps.
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