Hi @VinodKumar,
First of all, the type of field that can be used for filtering in Filter query can only be a string type field or a numeric type field.
For example, a single line of text, Date, Number, these types of fields can be used to configure the filter conditions.
It is not valid to configure Person or Group or Lookup field in the Filter query.
In addition, even if the type matches the field, if you rename it, you must use its initial name in Filter query, which is the name of the field displayed in Value.
If you want to filter the eligible items in Get items action, you could consider configuring Filter array action below.
Please take a try.
Best Regards,
