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diff --git a/src/core/tsi/alts/handshaker/alts_shared_resource.h b/src/core/tsi/alts/handshaker/alts_shared_resource.h
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+/*
+ *
+ * Copyright 2018 gRPC authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+#ifndef GRPC_CORE_TSI_ALTS_HANDSHAKER_ALTS_SHARED_RESOURCE_H
+#define GRPC_CORE_TSI_ALTS_HANDSHAKER_ALTS_SHARED_RESOURCE_H
+
+#include <grpc/support/port_platform.h>
+
+#include <grpc/grpc.h>
+#include <grpc/support/sync.h>
+
+#include "src/core/lib/gprpp/thd.h"
+#include "src/core/lib/iomgr/pollset_set.h"
+#include "src/core/lib/surface/completion_queue.h"
+
+/**
+ * Main struct containing ALTS shared resources used when
+ * employing the dedicated completion queue and thread.
+ */
+typedef struct alts_shared_resource_dedicated {
+  grpc_core::Thread thread;
+  grpc_completion_queue* cq;
+  grpc_pollset_set* interested_parties;
+  grpc_cq_completion storage;
+  gpr_mu mu;
+  grpc_channel* channel;
+} alts_shared_resource_dedicated;
+
+/* This method returns the address of alts_shared_resource_dedicated
+ * object shared by all TSI handshakes.
+ */
+alts_shared_resource_dedicated* grpc_alts_get_shared_resource_dedicated(void);
+
+/**
+ * This method destroys the alts_shared_resource_dedicated object
+ * shared by all TSI handshakes. The applicaiton is responsible for
+ * invoking the API before calling grpc_shutdown().
+ */
+void grpc_alts_shared_resource_dedicated_shutdown();
+
+/**
+ * This method initializes the alts_shared_resource_dedicated object
+ * shared by all TSI handshakes. The application is responsible for
+ * invoking the API after calling grpc_init();
+ */
+void grpc_alts_shared_resource_dedicated_init();
+
+/**
+ * This method populates various fields of the alts_shared_resource_dedicated
+ * object shared by all TSI handshakes and start the dedicated thread.
+ * The API will be invoked by the caller in a lazy manner. That is,
+ * it will get invoked when ALTS TSI handshake occurs for the first time.
+ */
+void grpc_alts_shared_resource_dedicated_start(
+    const char* handshaker_service_url);
+
+#endif /* GRPC_CORE_TSI_ALTS_HANDSHAKER_ALTS_SHARED_RESOURCE_H \
+        */