diff --git a/balanced_parenthesis.cpp b/balanced_parenthesis.cpp
new file mode 100644
index 0000000..118d942
--- /dev/null
+++ b/balanced_parenthesis.cpp
@@ -0,0 +1,68 @@
+#include<bits/stdc++.h>
+using namespace std;
+
+bool isValid(string s)
+{
+    int n = s.size();
+    stack<char> st;
+    bool ans = true;
+    for (int i = 0; i < n; i++)
+    {
+        if (s[i] == '{' or s[i] == '(' or s[i] == '[')
+        {
+            st.push(s[i]);
+        }
+        else if (s[i] == ')')
+        {
+            if (!st.empty() and st.top() == '(')
+            {
+                st.pop();
+            }
+            else
+            {
+                ans = false;
+                break;
+            }
+        }
+        else if (s[i] == ']')
+        {
+            if (!st.empty() and st.top() == '[')
+            {
+                st.pop();
+            }
+            else
+            {
+                ans = false;
+                break;
+            }
+        }
+        else if (s[i] == '}')
+        {
+            if (!st.empty() and st.top() == '{')
+            {
+                st.pop();
+            }
+            else
+            {
+                ans = false;
+                break;
+            }
+        }
+    }
+    if(!st.empty()){
+    return false;
+    }
+    return ans;
+}
+int main()
+{
+    string s = "{([])}";
+
+    if(isValid(s)){
+        cout<<"valid string ";
+    }
+    else{
+        cout<<"invalid string ";
+    }
+    return 0;
+}