diff --git a/README.md b/README.md
index e89138c..0423df8 100644
--- a/README.md
+++ b/README.md
@@ -5,7 +5,9 @@ DBMS_SQL Notes
 
 - PDF(of notes): https://drive.google.com/file/d/1XGU4dusm9IV2DzBnuKhrrM_o7hUIt7NT/view?usp=sharing
 
-- For Practice : https://www.hackerrank.com/domains/sql
+- For Practice :
+-  https://www.hackerrank.com/domains/sql
+- https://www.codechef.com/practice/sql-case-studies-topic-wise
 
 - Blogs
 1) [Geeks for geeks](https://www.geeksforgeeks.org/sql-tutorial/)