How can I Validate Request Body Key and Value parameters that is in Form-data format

You can import this file : https://www.getpostman.com/collections/ab68a847d37cdf288f8d

and below script where request data as JSON works with dots

var data = pm.response.json()
var formDataKey = data.form.name
var formDataValue = data.form.message
console.log(formDataKey + "\n" + formDataValue)

Updating the post @farhanhasanali you can use pm.expect and other test script examples to test the value.

var data = pm.response.json()
var formDataKey = data.form.name
var formDataValue = data.form.message
console.log(formDataKey + "\n" + formDataValue)

pm.test("Request body to have form Data", function () {
    pm.expect(data.form.name).to.be.a("number").and.is.not.null.and.to.not.be.undefined.and.is.not.empty
    pm.expect(data.form.value).to.be.a("string").and.is.not.null
});

The working (I have converted the name to int later because accepts the value in text):

working with form-data

I hope this helps :magic_wand: