Postman - how to validate csv/json test data against API response

Question

I have response in JSON, there are many nested properties inside. How to validate some text or numeric values between csv/json test data file and values in the json response. For example if certain IDs or titles in CSV/JSON complies with JSON body response. I can save JSON response as a global variable, but what to do next??

How to compare CSV data file with associated properties in JSON response?

Let's say I want to validate title value from CSV against following response:

[
        {
            "title": "Rules of Procedure",
            "taxonomyCategoryId": 48984123,
            "taxonomyCategoryName": "Legal documents"
        }
    ]

in post response scripts I have this:

pm.test("Response value matches expected value", function () {
         // this is the element you get from the response
         var jsonData = pm.response.json().title;
         // this is the element coming from the data file
         pm.expect(jsonData.title).to.eql(pm.iterationData.get("title"));
 });

CSV test data structured like this:

"title"
"Rules of Procedure"

When running collection with that request and test data csv (same when test data is in JSON format), I'm having this error: AssertionError: expected undefined to deeply equal 'Rules of Procedure'

I believe that there is something wrong with that line of post-script syntax: pm.expect(jsonData.title).to.eql(pm.iterationData.get("title"));