diff --git a/CORE/SME/inc/nan_Api.h b/CORE/SME/inc/nan_Api.h
new file mode 100644
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+++ b/CORE/SME/inc/nan_Api.h
@@ -0,0 +1,109 @@
+/*
+ * Copyright (c) 2014-2015 The Linux Foundation. All rights reserved.
+ *
+ * Previously licensed under the ISC license by Qualcomm Atheros, Inc.
+ *
+ *
+ * Permission to use, copy, modify, and/or distribute this software for
+ * any purpose with or without fee is hereby granted, provided that the
+ * above copyright notice and this permission notice appear in all
+ * copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
+ * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
+ * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
+ * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
+ * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+
+/*
+ * This file was originally distributed by Qualcomm Atheros, Inc.
+ * under proprietary terms before Copyright ownership was assigned
+ * to the Linux Foundation.
+ */
+
+/******************************************************************************
+*
+* Name:  nan_Api.h
+*
+* Description: NAN FSM defines.
+*
+******************************************************************************/
+
+#ifndef __NAN_API_H__
+#define __NAN_API_H__
+
+#include "vos_types.h"
+#include "halTypes.h"
+
+typedef struct sNanRequestReq
+{
+    tANI_U16 request_data_len;
+    const tANI_U8* request_data;
+} tNanRequestReq, *tpNanRequestReq;
+
+/******************************************************************************
+ * Function: Pointer NanCallback
+ *
+ * Description:
+ * this function pointer is used hold nan response callback. When ever driver
+ * receives nan response, this callback will be used.
+ *
+ * Args:
+ * first argument to pass hHal pointer and second argument
+ * to pass the nan response data.
+ *
+ * Returns:
+ * void
+******************************************************************************/
+typedef void (*NanCallback)(void*, tSirNanEvent*);
+
+/******************************************************************************
+ * Function: sme_NanRegisterCallback
+ *
+ * Description:
+ * This function gets called when HDD wants register nan rsp callback with
+ * sme layer.
+ *
+ * Args:
+ * hHal and callback which needs to be registered.
+ *
+ * Returns:
+ * void
+******************************************************************************/
+void sme_NanRegisterCallback(tHalHandle hHal, NanCallback callback);
+
+/******************************************************************************
+ * Function: sme_NanRequest
+ *
+ * Description:
+ * This function gets called when HDD receives NAN vendor command
+ * from userspace
+ *
+ * Args:
+ * hHal, Nan Request structure ptr and sessionId
+ *
+ * Returns:
+ * VOS_STATUS
+******************************************************************************/
+VOS_STATUS sme_NanRequest(tHalHandle hHalHandle, tpNanRequestReq input,
+        tANI_U32 sessionId);
+
+/******************************************************************************
+  \fn sme_NanEvent
+
+  \brief
+  a callback function called when SME received eWNI_SME_NAN_EVENT
+  event from WDA
+
+  \param hHal - HAL handle for device
+  \param pMsg - Message body passed from WDA; includes NAN header
+
+  \return VOS_STATUS
+******************************************************************************/
+VOS_STATUS sme_NanEvent(tHalHandle hHal, void* pMsg);
+
+#endif /* __NAN_API_H__ */