diff --git a/pwvld.py b/pwvld.py
index 25ae9e8..39f4c88 100644
--- a/pwvld.py
+++ b/pwvld.py
@@ -1,4 +1,5 @@
 import re, sys
+#password is valid if it is of length 8 and contains both uppercase and lowercase and numerical character
 s=input("Enter password to be validated:")
 if len(s) < 8 :
 	print("Weak password")