diff --git a/binary_search.py b/binary_search.py
new file mode 100644
index 00000000..fea28736
--- /dev/null
+++ b/binary_search.py
@@ -0,0 +1,24 @@
+def binary_search():
+    """
+    Perform binary search on a sorted array to find the index of the target element.
+    If the target element is not found, return -1.
+    """
+    arr = [1, 2, 3, 4, 5, 6, 7, 8, 9]
+    target = int(input("Enter the target element: "))
+    left = 0
+    right = len(arr) - 1
+
+    while left <= right:
+        mid = (left + right) // 2
+
+        if arr[mid] == target:
+            return mid
+        elif arr[mid] < target:
+            left = mid + 1
+        else:
+            right = mid - 1
+
+    return -1
+
+
+print(binary_search())