diff --git a/SEARCHING/py/sentinelSearch.py b/SEARCHING/py/sentinelSearch.py
new file mode 100644
index 0000000..226628a
--- /dev/null
+++ b/SEARCHING/py/sentinelSearch.py
@@ -0,0 +1,25 @@
+List = []
+
+def entry():
+    global num
+    num=int(input("Enter len of list"))
+    for i in range(num):
+        rollno=int(input("Enter values"))
+        List.append(rollno)
+    print(List)
+
+
+def sentinelSearch():
+    x= int(input("enter search element"))
+    temp = List[num-1]
+    List[num-1]=x
+    i=0
+    for j in range(num):
+        if List[i]!=x:
+            i+=1
+
+    List[num-1]=temp
+    if (i< num-1 or temp==x):
+        print("Element found, index: ",i)
+
+       
\ No newline at end of file