Zoho Creator - Embedded - Zoho criteria -

Zoho Creator - Embedded - Zoho criteria -

Dear Team,

Can anyone suggest the solution for below use-case . 

Use case Model
  1. I am using Zoho creator for Form - data entry
  2. User Login in Zoho creator via  Customer Portal self registration mode
  3. Populate Data from creator to Zoho Reports and do all analysis and generate dashboard in Zoho reports
  4. Use "Page" component in Zoho creator - embed "Zoho reports dashboard"".
  5. End user  can now view "Zoho reports" embedded dashboard in Zoho creator page
What we could not achieve ?
  1. We are unable to restrict the Zoho Reports dashboard based on Login user access in Zoho creator page OR in other words when user log in Zoho creator - user would able to see other users data too in the dashboard 
Options tried at our end and Failed ?
  1.  Login User mapping to dashboard in Zoho reports functionality would not serve us as we have limited login in Zoho reports. 
Note
  1. We are capturing Zoho creator Login id in Form submission in Zoho creator and Also capturing same Login id in Zoho reports table. We can have User filter  as "Login Id " - Zoho reports dashboard. This is possible in Zoho reports 
  2. How can we restrict this drop down filter - User login in Zoho creator embedded form ? - this is the challenge we are facing