Add DBMS course in Hindi (#8620)

courses/free-courses-hi.md

@@ -186,6 +186,7 @@
 ### Databases
 
 * [3.1 DBMS In Hindi (Complete Playlist)](https://www.youtube.com/playlist?list=PLmXKhU9FNesR1rSES7oLdJaNFgmuj0SYV) - Knowledge Gate
+* [Database Management System ( DBMS )](https://www.youtube.com/playlist?list=PLrjkTql3jnm-CLxHftqLgkrZbM8fUt0vn) - Education 4u
 * [DBMS (Database Management System)](https://www.youtube.com/playlist?list=PLdo5W4Nhv31b33kF46f9aFjoJPOkdlsRc) - Jenny's lectures CS/IT NET&JRF
 * [DBMS (Database Management System) Complete Playlist](https://www.youtube.com/playlist?list=PLxCzCOWd7aiFAN6I8CuViBuCdJgiOkT2Y) - Gate Smashers
 * [DBMS Lectures in Hindi](https://www.youtube.com/playlist?list=PL0s3O6GgLL5dg3bZhTicr5zUITPAlZNjj) - Last moment tuitions