diff --git a/interfaces/internal_interface.hpp b/interfaces/internal_interface.hpp
new file mode 100644
index 0000000..25d530d
--- /dev/null
+++ b/interfaces/internal_interface.hpp
@@ -0,0 +1,152 @@
+#pragma once
+
+#include "physical.hpp"
+
+#include <boost/algorithm/string.hpp>
+#include <phosphor-logging/lg2.hpp>
+#include <sdbusplus/bus.hpp>
+#include <sdbusplus/server/interface.hpp>
+#include <sdbusplus/vtable.hpp>
+
+#include <unordered_map>
+
+static constexpr auto busName = "xyz.openbmc_project.LED.Controller";
+static constexpr auto ledPath = "/xyz/openbmc_project/led";
+static constexpr auto physParent = "/xyz/openbmc_project/led/physical";
+static constexpr auto devParent = "/sys/class/leds/";
+static constexpr auto internalInterface =
+    "xyz.openbmc_project.Led.Sysfs.Internal";
+static constexpr auto ledAddMethod = "AddLED";
+
+namespace phosphor
+{
+namespace led
+{
+namespace sysfs
+{
+namespace interface
+{
+
+class InternalInterface
+{
+  public:
+    InternalInterface() = delete;
+    InternalInterface(const InternalInterface&) = delete;
+    InternalInterface& operator=(const InternalInterface&) = delete;
+    InternalInterface(InternalInterface&&) = delete;
+    InternalInterface& operator=(InternalInterface&&) = delete;
+    virtual ~InternalInterface() = default;
+
+    /**
+     *  @brief Construct a class to put object onto bus at a dbus path.
+     *
+     *  @param[in] bus  - D-Bus object.
+     *  @param[in] path - D-Bus Path.
+     */
+
+    InternalInterface(sdbusplus::bus_t& bus, const char* path);
+
+    /**
+     *  @brief Implementation for the AddLed method to add
+     *  the LED name to dbus path.
+     *
+     *  @param[in] name - LED name to add.
+     */
+
+    void addLED(const std::string& name);
+
+    /**
+     *  @brief Implementation for the RemoveLed method to remove
+     *  the LED name to dbus path.
+     *
+     *  @param[in] name - LED name to remove.
+     */
+
+    void removeLED(const std::string& name);
+
+  private:
+    /**
+     *  @brief  Unordered map to declare the sysfs LEDs
+     */
+
+    std::unordered_map<std::string, std::unique_ptr<phosphor::led::Physical>>
+        leds;
+
+    /**
+     *  @brief Structure to define the LED sysfs name
+     */
+
+    struct LedDescr
+    {
+        std::string devicename;
+        std::string color;
+        std::string function;
+    };
+
+    /**
+     *  @brief sdbusplus D-Bus connection.
+     */
+
+    sdbusplus::bus_t& bus;
+
+    /**
+     *  @brief Systemd bus callback for the AddLed method.
+     */
+
+    static int addLedConfigure(sd_bus_message* msg, void* context,
+                               sd_bus_error* error);
+
+    /**
+     *  @brief Systemd bus callback for the RemoveLed method.
+     */
+
+    static int removeLedConfigure(sd_bus_message* msg, void* context,
+                                  sd_bus_error* error);
+
+    /**
+     *  @brief Systemd vtable structure that contains all the
+     *  methods, signals, and properties of this interface with their
+     *  respective systemd attributes
+     */
+
+    static const std::array<sdbusplus::vtable::vtable_t, 4> vtable;
+
+    /**
+     *  @brief Support for the dbus based instance of this interface.
+     */
+
+    sdbusplus::server::interface_t serverInterface;
+
+    /**
+     *   @brief Implementation to create a dbus path for LED.
+     *
+     *   @param[in] name - LED name.
+     */
+
+    void createLEDPath(const std::string& ledName);
+
+    /** @brief Parse LED name in sysfs
+     *
+     *  Parse sysfs LED name in format "devicename:colour:function"
+     *  or "devicename:colour" or "devicename" and sets corresponding
+     *  fields in LedDescr struct.
+     *
+     *  @param[in] name      - LED name in sysfs
+     *  @param[out] ledDescr - LED description
+     */
+
+    static void getLedDescr(const std::string& name, LedDescr& ledDescr);
+
+    /** @brief Generates LED DBus name from LED description
+     *
+     *  @param[in] name      - LED description
+     *  @return              - DBus LED name
+     */
+
+    static std::string getDbusName(const LedDescr& ledDescr);
+};
+
+} // namespace interface
+} // namespace sysfs
+} // namespace led
+} // namespace phosphor