diff --git a/packages/techdocs-container/techdocs-core/src/core.py b/packages/techdocs-container/techdocs-core/src/core.py
index ed1eb7c6f6..7d32b69ad8 100644
--- a/packages/techdocs-container/techdocs-core/src/core.py
+++ b/packages/techdocs-container/techdocs-core/src/core.py
@@ -30,6 +30,10 @@ class TechDocsCore(BasePlugin):
             '{\n  "site_name": "{{ config.site_name }}",\n  "site_description": "{{ config.site_description }}"\n}'
         )
 
+        mdx_configs_override = {}
+        if "mdx_configs" in config:
+            mdx_configs_override = config["mdx_configs"].copy()
+
         # Theme
         config["theme"] = Theme(
             name="material", static_templates=["techdocs_metadata.json",],
@@ -44,15 +48,16 @@ class TechDocsCore(BasePlugin):
 
         monorepo_plugin = MonorepoPlugin()
         monorepo_plugin.load_config({})
-
         config["plugins"]["search"] = search_plugin
         config["plugins"]["monorepo"] = monorepo_plugin
 
-        search_plugin = SearchPlugin()
-        search_plugin.load_config({})
-        config["plugins"]["search"] = search_plugin
-
         # Markdown Extensions
+        if "markdown_extensions" not in config:
+            config["markdown_extensions"] = []
+
+        if "mdx_configs" not in config:
+            config["mdx_configs"] = {}
+
         config["markdown_extensions"].append("admonition")
         config["markdown_extensions"].append("toc")
         config["mdx_configs"]["toc"] = {
@@ -90,4 +95,11 @@ class TechDocsCore(BasePlugin):
         config["markdown_extensions"].append("markdown_inline_graphviz")
         config["markdown_extensions"].append("plantuml_markdown")
 
+        # merge config supplied by user in the mkdocs.yml
+        for key in mdx_configs_override:
+            if key in config["mdx_configs"]:
+                default_config = config["mdx_configs"][key]
+                override_config = mdx_configs_override[key]
+                default_config.update(override_config)
+
         return config
diff --git a/packages/techdocs-container/techdocs-core/src/test_core.py b/packages/techdocs-container/techdocs-core/src/test_core.py
new file mode 100644
index 0000000000..621570356c
--- /dev/null
+++ b/packages/techdocs-container/techdocs-core/src/test_core.py
@@ -0,0 +1,41 @@
+import unittest
+import mkdocs.config as config
+import mkdocs.plugins as plugins
+from .core import TechDocsCore
+
+
+class DummyTechDocsCorePlugin(plugins.BasePlugin):
+    pass
+
+
+class TestTechDocsCoreConfig(unittest.TestCase):
+    def setUp(self):
+        self.techdocscore = TechDocsCore()
+        self.plugin_collection = plugins.PluginCollection()
+        plugin = DummyTechDocsCorePlugin()
+        self.plugin_collection["techdocs-core"] = plugin
+        self.mkdocs_yaml_config = {"plugins": self.plugin_collection}
+
+    def test_removes_techdocs_core_plugin_from_config(self):
+        final_config = self.techdocscore.on_config(self.mkdocs_yaml_config)
+        self.assertTrue("techdocs-core" not in final_config["plugins"])
+
+    def test_merge_default_config_and_user_config(self):
+        self.mkdocs_yaml_config["markdown_extension"] = []
+        self.mkdocs_yaml_config["mdx_configs"] = {}
+        self.mkdocs_yaml_config["markdown_extension"].append(["toc"])
+        self.mkdocs_yaml_config["mdx_configs"]["toc"] = {"toc_depth": 3}
+        final_config = self.techdocscore.on_config(self.mkdocs_yaml_config)
+        self.assertTrue("toc" in final_config["mdx_configs"])
+        self.assertTrue("permalink" in final_config["mdx_configs"]["toc"])
+        self.assertTrue("toc_depth" in final_config["mdx_configs"]["toc"])
+
+    def test_override_default_config_with_user_config(self):
+        self.mkdocs_yaml_config["markdown_extension"] = []
+        self.mkdocs_yaml_config["mdx_configs"] = {}
+        self.mkdocs_yaml_config["markdown_extension"].append(["toc"])
+        self.mkdocs_yaml_config["mdx_configs"]["toc"] = {"permalink": False}
+        final_config = self.techdocscore.on_config(self.mkdocs_yaml_config)
+        self.assertTrue("toc" in final_config["mdx_configs"])
+        self.assertTrue("permalink" in final_config["mdx_configs"]["toc"])
+        self.assertFalse(final_config["mdx_configs"]["toc"]["permalink"])