"Please find the attached herewith list of the suppliers whose account reconciliation is done and am carrying out with the remaining ones."

I'm not entirely sure I am understanding this correctly. But I think what you want to say is, " Please find attached; the list of suppliers whose account reconciliations are complete. I am still working to complete the remaining ones."

And if this isn't quite right,  I think you might otherwise mean, "Please find attached; the list of suppliers whose accounts are reconciled. I am still working to complete the ones remaining."

Karthikeyan isn't wrong, but it also depends where in the world you are. Loo is used in the United Kingdom, Australia and New Zealand, but not the Americas... although many people will still understand that you are talking about the toilet. 

Washroom, Bathroom, and Restroom are all used in Canada and the United States to mean the toilet. In the America's, unlike the UK, toilets, and baths or showers are commonly in the same room. In the UK, if you ask where the bathroom is, they will think you are talking about the room that has a bath or shower and is often a separate room from the toilet. No matter where you go in the western world these days, most toilets will also have a wash basin/sink in the same room.