diff --git a/include/tdi/common/c_frontend/tdi_table_data.h b/include/tdi/common/c_frontend/tdi_table_data.h
index ac5d8c3..0c6bd0c 100644
--- a/include/tdi/common/c_frontend/tdi_table_data.h
+++ b/include/tdi/common/c_frontend/tdi_table_data.h
@@ -174,6 +174,21 @@ tdi_status_t tdi_data_field_set_string(tdi_table_data_hdl *data_hdl,
                                         const tdi_id_t field_id,
                                         const char *val);
 
+/**
+ * @brief Set value based on size. Valid only on fields with string type
+ *
+ * @param[in] data_hdl          Data object handle
+ * @param[in] field_id          Field ID
+ * @param[in] val               String value
+ * @param[in] s                 Size of string value
+ *
+ * @return Status of the API call
+ */
+tdi_status_t tdi_data_field_set_string_with_size(tdi_table_data_hdl *data_hdl,
+                                                  const tdi_id_t field_id,
+                                                  const char *val,
+                                                  const size_t s);
+
 /**
  * @brief Get value. Only valid on fields of size <= 64 bits
  *
diff --git a/include/tdi/common/tdi_table_data.hpp b/include/tdi/common/tdi_table_data.hpp
index 8e8b9a8..86d43dd 100644
--- a/include/tdi/common/tdi_table_data.hpp
+++ b/include/tdi/common/tdi_table_data.hpp
@@ -196,13 +196,26 @@ class TableData {
    * @brief Set value. Valid only on fields with string type
    *
    * @param[in] field_id Field ID
-   * @param[in] value String value
+   * @param[in] str String value
    *
    * @return Status of the API call
    */
   virtual tdi_status_t setValue(const tdi_id_t &field_id,
                                 const std::string &str);
 
+  /**
+   * @brief Set value based on size. Valid only on fields with string type
+   *
+   * @param[in] field_id Field ID
+   * @param[in] str String value
+   * @param[in] s Size of string value
+   *
+   * @return Status of the API call
+   */
+  virtual tdi_status_t setValue(const tdi_id_t &field_id,
+                                const std::string &str,
+                                const size_t &size);
+
   /** @} */  // End of group Set APIs
 
   /**
diff --git a/src/c_frontend/tdi_table_data_c.cpp b/src/c_frontend/tdi_table_data_c.cpp
index a0ac192..902f101 100644
--- a/src/c_frontend/tdi_table_data_c.cpp
+++ b/src/c_frontend/tdi_table_data_c.cpp
@@ -124,6 +124,24 @@ tdi_status_t tdi_data_field_set_string(tdi_table_data_hdl *data_hdl,
   return data_field->setValue(field_id, str_val);
 }
 
+tdi_status_t tdi_data_field_set_string_with_size(tdi_table_data_hdl *data_hdl,
+                                                  const tdi_id_t field_id,
+                                                  const char *val,
+                                                  const size_t s) {
+  auto data_field = reinterpret_cast<tdi::TableData *>(data_hdl);
+  std::string str_val = {0};
+  if (s > 0) {
+      /* we don't append directly as the data/value would be appended to NULL,
+       * instead, we want to assign the same value to str_val which val
+       * holds. */
+      str_val = val[0];
+      for (int i = 1; i < (int)s; i++) {
+          str_val += val[i];
+      }
+  }
+  return data_field->setValue(field_id, str_val, s);
+}
+
 tdi_status_t tdi_data_field_get_value(const tdi_table_data_hdl *data_hdl,
                                        const tdi_id_t field_id,
                                        uint64_t *val) {
diff --git a/src/tdi_table_data.cpp b/src/tdi_table_data.cpp
index ff1b8e7..bbc7402 100644
--- a/src/tdi_table_data.cpp
+++ b/src/tdi_table_data.cpp
@@ -82,6 +82,13 @@ tdi_status_t TableData::setValue(const tdi_id_t & /*field_id*/,
   return TDI_NOT_SUPPORTED;
 }
 
+tdi_status_t TableData::setValue(const tdi_id_t & /*field_id*/,
+                                 const std::string & /*str*/,
+                                 const size_t & /*size*/) {
+  LOG_ERROR("%s:%d Not supported", __func__, __LINE__);
+  return TDI_NOT_SUPPORTED;
+}
+
 tdi_status_t TableData::getValue(const tdi_id_t & /*field_id*/,
                                  uint64_t * /*value*/) const {
   LOG_ERROR("%s:%d Not supported", __func__, __LINE__);
diff --git a/tdi_python/tdiTable.py b/tdi_python/tdiTable.py
index 1cd87d4..bc538eb 100644
--- a/tdi_python/tdiTable.py
+++ b/tdi_python/tdiTable.py
@@ -1109,8 +1109,13 @@ def _set_data_field(self, content, data_handle, data_fields):
                 value = c_bool(content[name])
                 sts = self._cintf.get_driver().tdi_data_field_set_bool(data_handle, info.id, value)
             if self.data_type_cls.data_type_str(info.data_type) == "STRING":
-                value = c_char_p(content[name].encode('ascii'))
-                sts = self._cintf.get_driver().tdi_data_field_set_string(data_handle, info.id, value)
+                string = content[name]
+                if string[0:2] == "0x":
+                    bytestr = bytes.fromhex(string[2:])
+                else:
+                    bytestr = string.encode('ascii')
+                value = c_char_p(bytestr)
+                sts = self._cintf.get_driver().tdi_data_field_set_string_with_size(data_handle, info.id, value, len(bytestr))
             """
             if self.data_type_cls.data_type_str(info.data_type) == "CONTAINER":
                 cont_list_len = len(content[name])