Data import of strings with special characters - C#

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Hi All,

I am trying to import data to RightNow using REST web service C# code. The data contains special characters like "ç" ."ã", etc. The data is getting imported with "?" in place of special character. I need to insert the data without changing the special characters to RightNow.

Could anyone help me on this.

Thanks in Advance,

Rejitha