Update free-courses-hi.md (#10550)

* Update free-courses-hi.md

* Update free-courses-hi.md

courses/free-courses-hi.md

@@ -150,6 +150,7 @@
 ### <a id="c"></a>C
 
 * [All C Concepts \| Hindi](https://www.youtube.com/playlist?list=PL7ersPsTyYt1d8g5qaxbE6sjWDzs4D_1v) - Saurabh Shukla
+* [C Language for GATE — Complete Playlist](https://www.youtube.com/playlist?list=PLC36xJgs4dxG-IqARhc23jYTDMYt7yvZP) - Gate CSE lectures by Amit Khurana
 * [C Language Tutorial for Beginners (with Notes & Practice Questions)](https://www.youtube.com/watch?v=irqbmMNs2Bo) - Apna College
 * [C Language Tutorial For Beginners In Hindi (With Notes)](https://www.youtube.com/watch?v=ZSPZob_1TOk) - CodeWithHarry
 * [C Language Tutorial in Hindi](https://www.youtube.com/playlist?list=PLmRclvVt5DtksgReOH3s7R1_cb1QA8vrb) - codeitup