diff --git a/src/chapter03linkedlists/MergeSortLinkedList.java b/src/chapter03linkedlists/MergeSortLinkedList.java
new file mode 100644
index 0000000..36b5eec
--- /dev/null
+++ b/src/chapter03linkedlists/MergeSortLinkedList.java
@@ -0,0 +1,71 @@
+class LinkedListNode<T> {
+    T data;
+    LinkedListNode<T> next;
+    
+    public LinkedListNode(T data) {
+        this.data = data;
+    }
+}
+
+public class MergeSortLinkedList{
+    
+    	public static LinkedListNode<Integer> mergeSort(LinkedListNode<Integer> head) {
+	
+if (head == null || head.next == null) { 
+            return head; 
+        } 
+  
+       LinkedListNode<Integer> middle = getMiddle(head); 
+        LinkedListNode<Integer> nextofmiddle = middle.next; 
+  
+       middle.next = null; 
+  
+      LinkedListNode<Integer> left = mergeSort(head); 
+  
+        LinkedListNode<Integer> right = mergeSort(nextofmiddle); 
+  
+        LinkedListNode<Integer> sortedlist = sortedMerge(left, right); 
+        return sortedlist; 
+	}
+  public static LinkedListNode<Integer> sortedMerge(LinkedListNode<Integer> a, LinkedListNode<Integer> b) 
+    { 
+        LinkedListNode<Integer> result = null; 
+        if (a == null) 
+            return b; 
+        if (b == null) 
+            return a; 
+  
+        if (a.data <= b.data) { 
+            result = a; 
+            result.next = sortedMerge(a.next, b); 
+        } 
+        else { 
+            result = b; 
+            result.next = sortedMerge(a, b.next); 
+        } 
+        return result; 
+    } 
+  
+
+  
+   public static LinkedListNode<Integer> getMiddle(LinkedListNode<Integer> h) 
+    { 
+         if (h == null) 
+            return h; 
+        LinkedListNode<Integer> fastptr = h.next; 
+        LinkedListNode<Integer> slowptr = h; 
+  
+          while (fastptr != null) { 
+            fastptr = fastptr.next; 
+            if (fastptr != null) { 
+                slowptr = slowptr.next; 
+                fastptr = fastptr.next; 
+            } 
+        } 
+        return slowptr; 
+    } 
+
+
+
+  
+}
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