public string GetNativeRepresentation(double value)
{
    var format = CultureInfo.GetCultureInfo("gu-IN").NumberFormat;
    return String.Join("", value.ToString(CultureInfo.InvariantCulture)
                 .Select(x =>
                 {
                     if ("1234567890".Contains(x.ToString()))
                         return format.NativeDigits[x - '0'];
                     else if (x == '-')
                         return format.NegativeSign;
                     else if (x == '.')
                         return format.NumberDecimalSeparator;
                     else
                         return x.ToString();
                 }));
}