I have tried to parametrize from a csv file using the steps mentioned in this [link](http://apache-jmeter.blogspot.in/2011/12/parameterization-using-csv-data-set.html).

While executing it is showing the following error

> 
> `Response code: Non HTTP response code:
>  org.apache.http.conn.HttpHostConnectException Response message: Non
>  HTTP response message: Connection to http://www.redbus.in:8080
>  refused`
> 
> 
> 

I have given port as 8080 and changed the browser settings also accordingly. Without parametrization the code is working fine. How to fix this?