Professional tax

Dear All,

I have doubt regarding Profession Tax. As per the rule..Our organization comes under monthly returns filing.

We have paid PT but not filed returns from April 2013 to till now.So,do we need to pay the late fee for every month?  If yes how much?

Can you tell me how to file the returns online? What is the procedure ? which form to be filled and how to upload?

Thanks in advance..