diff --git a/15 October  k-th Smallest in BST b/15 October  k-th Smallest in BST
new file mode 100644
index 0000000..e44f6ee
--- /dev/null
+++ b/15 October  k-th Smallest in BST	
@@ -0,0 +1,12 @@
+class Solution {
+  public:
+    int kthSmallest(Node *root, int &k) {
+        // code here
+        if(root == NULL) return -1;
+        int tmp = kthSmallest(root -> left, k);
+        if(tmp != -1) return tmp;
+        k--;
+        if(k == 0) return root -> data;
+        return kthSmallest(root -> right, k);
+    }
+};