diff --git a/sorting_algos/bubble_sort.cpp b/sorting_algos/bubble_sort.cpp
index d110245..e2b00a9 100644
--- a/sorting_algos/bubble_sort.cpp
+++ b/sorting_algos/bubble_sort.cpp
@@ -1,3 +1,5 @@
+// recursive approach
+
 void bubble_sort(int arr[],int size)
 { 
     if (size == 0 || size == 1)
@@ -12,4 +14,22 @@ void bubble_sort(int arr[],int size)
         }
     }
     bubble_sort(arr, size - 1);
+}
+
+// itrative approach
+void bubble_sort(int arr[],int size)
+{ 
+    for(int i = 0; i < size - 1 ; i++)
+    {
+        for(int j = 0 ; j < size - i - 1; j++)
+        {
+            if(arr[j] > arr[j + 1])
+            {
+                int temp = arr[j];
+                arr[j] = arr[j + 1];
+                arr[i + j] = temp;
+            }
+            
+        }
+    }
 }
\ No newline at end of file