diff --git a/Day-11/test.py b/Day-11/test.py
new file mode 100644
index 00000000..149200a6
--- /dev/null
+++ b/Day-11/test.py
@@ -0,0 +1,17 @@
+student_properties= {
+    "name":"abhi",
+    "class":"12th"
+}
+
+students_info=[
+    {
+    "name":"nishka",
+    "class":"12th"
+},
+  {
+    "name":"kiyana",
+    "class":"12th"
+}]
+
+print (student_properties ["name"])
+print (students_info[0]["name"])
\ No newline at end of file
diff --git a/Day-12/fileoperations.py b/Day-12/fileoperations.py
new file mode 100644
index 00000000..2fa7ea50
--- /dev/null
+++ b/Day-12/fileoperations.py
@@ -0,0 +1,13 @@
+def updatefileProperties (filePath,key,value):
+    with open(filePath,"r") as serverConf:
+        lines = serverConf.readlines();
+
+    with open(filePath,"w") as serverConf:
+        for line in lines:
+            if key in line:
+                serverConf.write(key+"="+value+"\n")
+            else:
+                 serverConf.write(line)
+
+
+updatefileProperties("server.conf","MAX_CONNECTIONS","200")
\ No newline at end of file