date filters not working on Constituent API

Revanth GSS

Hey team.

I am trying to get the constituents that are created or modified after a certain timestamp by using date_added / last_modified query parameters. But the api is returning all the records.

Here is the screenshot of the postman request and the response.

The response in the image contains the constituent added on year 2011 although the date_added parameters is the year 2016. Am I missing something here or Is there any bug with the API?