Tally.ERP 9 supports HTTP SOAP requests with the content-types ASCII , UTF-8 and UTF-16 .
To extract the symbols like Indian Rupee, you need to send the HTTP SOAP request with content-type UTF-16. By default, Tally.ERP 9 responds in UTF-8 format, unless a specific content-type is specified in the HTTP SOAP request from Third Party Application (TPA).