NEW COURSES ARE ADDED. (#9818)

* new book added

* NEW COURSES ADDED

* Update free-programming-books-langs.md

* Update free-programming-books-langs.md

* Update courses/free-courses-en.md

Co-authored-by: Eric Hellman <eric@hellman.net>

* Update courses/free-courses-en.md

Co-authored-by: Eric Hellman <eric@hellman.net>

* Update courses/free-courses-en.md

Co-authored-by: Eric Hellman <eric@hellman.net>

* Update courses/free-courses-en.md

Co-authored-by: Eric Hellman <eric@hellman.net>

* Update free-courses-en.md

* Update free-courses-en.md

---------

Co-authored-by: Eric Hellman <eric@hellman.net>

courses/free-courses-en.md

@@ -362,6 +362,7 @@
 * [Cloud Computing and Development](https://uaceit.com/courses/cloud-computing-and-development) - Ashwin Kumar Ramaswamy (UAceIt) (email address *required*)
 * [Cloud Computing Full Course In 11 Hours \| Cloud Computing Tutorial For Beginners](https://www.youtube.com/watch?v=2LaAJq1lB1Q) - Edureka!
 * [Introduction to Cloud](https://cognitiveclass.ai/courses/introduction-to-cloud) - CognitiveClass.ai
+* [NPTEL-CloudComputing](https://www.youtube.com/playlist?list=PLShJJCRzJWxhz7SfG4hpaBD5bKOloWx9J) - Manish Narula
 
 
 #### AWS
@@ -422,6 +423,9 @@
 
 ### Cryptography
 
+* [Cryptography & Network Security](https://www.youtube.com/playlist?list=PLBlnK6fEyqRgJU3EsOYDTW7m6SUmW6kII) - Neso Academy
+* [Cryptography Lecture Series](https://www.youtube.com/playlist?list=PL2jrku-ebl3H50FiEPr4erSJiJHURM9BX) - Christof Paar
+* [Foundations of Cryptography](https://www.youtube.com/playlist?list=PLgMDNELGJ1CbdGLyn7OrVAP-IKg-0q2U2) - NPTEL  Indian Institute of Science, Bengaluru
 * [Introduction to Cryptography](https://open.ruhr-uni-bochum.de/en/lernangebot/introduction-cryptography) (Christof Paar)
 * [Stanford Cryptography I](https://www.coursera.org/course/crypto) - Dan Boneh
 * [Stanford Cryptography II](https://www.coursera.org/course/crypto2) - Dan Boneh
@@ -510,6 +514,7 @@
 * [Learn SQL: SQL Tutorial for Beginners](https://www.programiz.com/sql) - Programiz
 * [MySQL Tutorial for Beginners [Full Course]](https://www.youtube.com/watch?v=7S_tz1z_5bA) - Moshfegh Hamedani (Programming with Mosh)
 * [SQL Foundations](https://www.udemy.com/course/sql-essentials-for-beginners/) - Sagar Uppuluri (Udemy)
+* [SQL NPTEL](https://www.youtube.com/playlist?list=PLLQPIumE5cE-gzU5hChH1V3H93x4UOlHR)
 * [SQL Tutorial](https://www.youtube.com/playlist?list=PL_RGaFnxSHWr_6xTfF2FrIw-NAOo3iWMy)
 * [SQL Tutorial - Full Database Course for Beginners](https://www.youtube.com/watch?v=HXV3zeQKqGY) - Mike Dane (freeCodeCamp)