Extra parameters on Report

 I have created a class with 2 parameters however when the Dialog box is rendered there are 4 parameters displayed as shown below

So basically when the parameters are rendered these are done from the SSRS report. When we open the SSRS report parameters we can notice that these additional parameters are added to the report and these are the same parameters which are repeating. 

To solve the issue, we need to delete the unwanted parameters from the parameters list and redeploy the report.