diff --git a/README.md b/README.md
index 17bccb2..db56d70 100644
--- a/README.md
+++ b/README.md
@@ -23,6 +23,8 @@ Thanks goes to these wonderful people ([emoji key](https://allcontributors.org/d
     <td align="center"><a href="https://aravinds-arv.github.io/"><img src="https://avatars.githubusercontent.com/u/78845005?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Aravind S</b></sub></a><br /><a href="https://github.com/gtechatfg/WikiSyllabus/commits?author=aravinds-arv" title="Documentation">📖</a></td>
     <td align="center"><a href="https://github.com/milandeepak"><img src="https://avatars.githubusercontent.com/u/71485068?v=4?s=100" width="100px;" alt=""/><br /><sub><b>milandeepak</b></sub></a><br /><a href="#question-milandeepak" title="Answering Questions">💬</a> <a href="https://github.com/gtechatfg/WikiSyllabus/commits?author=milandeepak" title="Documentation">📖</a></td>
     <td align="center"><a href="https://github.com/athul-2003"><img src="https://avatars.githubusercontent.com/u/128019369?s=400&u=51428c2c08488fb516f81735e347846f1fd34b34&v=4" width="100px;" alt=""/><br /><sub><b>H Athulkrishnan</b></sub></a><br /><a href="https://github.com/athul-2003/WikiSyllabus/commit/4ffba6a76a986a705aec1f07243ff0e923de4bae" title="Documentation">📖</a></td>
+    <td align="center"><a href="https://github.com/sinan-sulaiman-33"><img src="https://avatars.githubusercontent.com/u/143943603?v=4" width="100px;" alt="" /><br /><sub><b>Sinan Sulaiman</b></sub></a><br /><a href="https://github.com/sinan-sulaiman-33/WikiSyllabus/commit/c164ccbf0aa2527e25385f7a12eb1ab31f740632" title="Theory Content">📖</a>
+    </td>
   </tr>
 </table>
 
diff --git a/src/WikiSyllabus/KTU/2019_Scheme/S6/ME/MET304/1.md b/src/WikiSyllabus/KTU/2019_Scheme/S6/ME/MET304/1.md
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@@ -0,0 +1,13 @@
+# D'Alembert's Principle
+##### It states that when a system (body) is in dynamic equilibrium, the vector sum of inertia forces, external forces, and torques on the body is equal to zero.
+#### Fi + ΣF = 0
+##### where
+Fi → inertia force = -ma
+<br/>
+ΣF → resultant of external forces
+ 
+#### Ti + ΣT = 0
+##### where
+Ti → inertia torque = -Iα
+<br/>
+ΣT → resultant of external torques
diff --git a/src/WikiSyllabus/KTU/2019_Scheme/S6/ME/MET304/SUMMARY.md b/src/WikiSyllabus/KTU/2019_Scheme/S6/ME/MET304/SUMMARY.md
new file mode 100644
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@@ -0,0 +1,4 @@
+# MET304 - Dynamics and Design of Machinery
+#### INDEX
+
+- [D'Alembert's Principle](./1.md)