diff --git a/vpd-manager/bios_handler.hpp b/vpd-manager/bios_handler.hpp
new file mode 100644
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--- /dev/null
+++ b/vpd-manager/bios_handler.hpp
@@ -0,0 +1,169 @@
+#pragma once
+
+#include "types.hpp"
+
+#include <stdint.h>
+
+#include <string>
+
+namespace sdbusplus
+{
+namespace bus
+{
+class bus;
+} // namespace bus
+} // namespace sdbusplus
+
+namespace sdbusplus
+{
+namespace message
+{
+class message;
+} // namespace message
+} // namespace sdbusplus
+
+namespace openpower
+{
+namespace vpd
+{
+namespace manager
+{
+
+class Manager;
+/**
+ * @brief A class that handles changes to BIOS attributes backed by VPD.
+ *
+ * This class has APIs that handle updates to BIOS attributes that need to
+ * be backed up to VPD. It mainly does the following:
+ * 1) Checks if the VPD keywords that BIOS attributes are backed to are
+ * uninitialized. If so, it initializes them.
+ * 2) Listens for changes to BIOS attributes and synchronizes them to the
+ * appropriate VPD keyword.
+ *
+ * Since on a factory reset like scenario, the BIOS attributes are initialized
+ * by PLDM, this code waits until PLDM has grabbed a bus name before attempting
+ * any syncs.
+ */
+class BiosHandler
+{
+  public:
+    // Some default and deleted constructors and assignments.
+    BiosHandler() = delete;
+    BiosHandler(const BiosHandler&) = delete;
+    BiosHandler& operator=(const BiosHandler&) = delete;
+    BiosHandler(Manager&&) = delete;
+    BiosHandler& operator=(BiosHandler&&) = delete;
+    ~BiosHandler() = default;
+
+    BiosHandler(sdbusplus::bus::bus& bus, Manager& manager) :
+        bus(bus), manager(manager)
+    {
+        checkAndListenPLDMService();
+    }
+
+  private:
+    /**
+     * @brief Check if PLDM service is running and run BIOS sync
+     *
+     * This API checks if the PLDM service is running and if yes it will start
+     * an immediate sync of BIOS attributes. If the service is not running, it
+     * registers a listener to be notified when the service starts so that a
+     * restore can be performed.
+     */
+    void checkAndListenPLDMService();
+
+    /**
+     * @brief Register listener for changes to BIOS Attributes.
+     *
+     * The VPD manager needs to listen to changes to certain BIOS attributes
+     * that are backed by VPD. When the attributes we are interested in
+     * change, the VPD manager will make sure that we write them back to the
+     * VPD keywords that back them up.
+     */
+    void listenBiosAttribs();
+
+    /**
+     * @brief Callback for BIOS Attribute changes
+     *
+     * Checks if the BIOS attribute(s) changed are those backed up by VPD. If
+     * yes, it will update the VPD with the new attribute value.
+     * @param[in] msg - The callback message.
+     */
+    void biosAttribsCallback(sdbusplus::message::message& msg);
+
+    /**
+     * @brief Persistently saves the Memory mirror mode
+     *
+     * Memory mirror mode setting is saved to the UTIL/D0 keyword in the
+     * motherboard VPD. If the mirror mode in BIOS is "Disabled", set D0 to 1,
+     * if "Enabled" set D0 to 2
+     *
+     * @param[in] mirrorMode - The mirror mode BIOS attribute.
+     */
+    void saveAMMToVPD(const std::string& mirrorMode);
+
+    /**
+     * @brief Persistently saves the Field Core Override setting
+     *
+     * Saves the field core override value (FCO) into the VSYS/RG keyword in
+     * the motherboard VPD.
+     *
+     * @param[in] fcoVal - The FCO value as an integer.
+     */
+    void saveFCOToVPD(int64_t fcoVal);
+
+    /**
+     * @brief Writes Memory mirror mode to BIOS
+     *
+     * Writes to the hb_memory_mirror_mode BIOS attribute.
+     *
+     * @param[in] ammVal - The mirror mode as read from VPD.
+     */
+    void saveAMMToBIOS(const std::string& ammVal);
+
+    /**
+     * @brief Writes Field Core Override to BIOS
+     *
+     * Writes to the hb_field_core_override BIOS attribute.
+     *
+     * @param[in] fcoVal - The FCO value as read from VPD.
+     */
+    void saveFCOToBIOS(const std::string& fcoVal);
+
+    /**
+     * @brief Reads the hb_memory_mirror_mode attribute
+     *
+     * @return int64_t - The AMM BIOS attribute. -1 on failure.
+     */
+    std::string readBIOSAMM();
+
+    /**
+     * @brief Reads the hb_field_core_override attribute
+     *
+     * @return std::string - The FCO BIOS attribute. Empty string on failure.
+     */
+    int64_t readBIOSFCO();
+
+    /**
+     * @brief Restore BIOS attributes
+     *
+     * This function checks if we are coming out of a factory reset. If yes,
+     * it checks the VPD cache for valid backed up copy of the FCO and AMM
+     * BIOS attributes. If valid values are found in the VPD, it will apply
+     * those to the BIOS attributes.
+     */
+    void restoreBIOSAttribs();
+
+    /**
+     * @brief Reference to the bus.
+     */
+    sdbusplus::bus::bus& bus;
+
+    /**
+     * @brief Reference to the manager.
+     */
+    Manager& manager;
+}; // class BiosHandler
+} // namespace manager
+} // namespace vpd
+} // namespace openpower
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