diff --git a/challengers-list.md b/challengers-list.md
index 2fb6f60ea..b1e3aaab6 100644
--- a/challengers-list.md
+++ b/challengers-list.md
@@ -2,3 +2,4 @@
 1. [Mrinal](https://github.com/mrinal1224)
 2. [Shivay](https://github.com/shivaylamba)
 3. [Raghav](https://github.com/raghavdhingra)
+4. [Tushar](https://github.com/TusharKuwar)
diff --git a/contributors/TusharKuwar/TusharKuwar.md b/contributors/TusharKuwar/TusharKuwar.md
new file mode 100644
index 000000000..92d34581b
--- /dev/null
+++ b/contributors/TusharKuwar/TusharKuwar.md
@@ -0,0 +1,8 @@
+---
+name: Tushar Kuwar
+github_user_name: TusharKuwar
+url_of_github_issue: https://github.com/scaleracademy/scaler-september-open-source-challenge/issues/411
+your_favroite_programming_language: Python
+your_hosted_github_pages_link: https://tusharkuwar.github.io/me/
+your_hosted_github_pages_repository_link: https://github.com/TusharKuwar/me
+---
diff --git a/contributors/TusharKuwar/gist-solutions.md b/contributors/TusharKuwar/gist-solutions.md
new file mode 100644
index 000000000..dcf098980
--- /dev/null
+++ b/contributors/TusharKuwar/gist-solutions.md
@@ -0,0 +1,4 @@
+# Gist Linkes
+
+1: Software Development Related Topic Gist: <https://gist.github.com/TusharKuwar/9b31ff11be49d2619134ff89fa3b131c>
+2: Code Snippet Gist: <https://gist.github.com/TusharKuwar/ed66a7d620c748b35cf6e5c6ddb1a484>
diff --git a/contributors/TusharKuwar/inorder_postorder_to_tree.py b/contributors/TusharKuwar/inorder_postorder_to_tree.py
new file mode 100644
index 000000000..ba23d2550
--- /dev/null
+++ b/contributors/TusharKuwar/inorder_postorder_to_tree.py
@@ -0,0 +1,6 @@
+# return sum
+n = input()
+total = 0
+for ele in n:
+    total += int(ele)
+print("Sum of digits of the number " + n + " is", total)