The updated list of allowed and disallowed courses is here (March 6, 2020).

List of Non-CSE Courses Allowed to be Tagged as CSE Electives

1. SC 631 (Games and Information)
   Course contents: http://www.sc.iitb.ac.in/~ankur/docs/SC631_Games&Information.pdf Approved online via email discussion by DUGC 04 Jul 2014.
2. SI 515 (Statistical Techniques in Data Mining)
   Course contents: http://www.iitb.ac.in/acadpublic/crsedetail.jsp?ccd=SI%20515
   Approved online via email discussion by DUGC 17 Jul 2014
3. EE 720 (An Introduction to Number Theory and Cryptography)
   Course contents on ASC http://asc.iitb.ac.in/academic/CourseRegistration/Common/crsedetail.jsp?ccd=EE%20720
   Approved online via email discussion by DUGC 25 Jul 2014

List of Non-CSE Courses Explicitly Disallowed to be Tagged as CSE Electives

1. SI 419 (Combinatorics)
   Course contents given here http://www.math.iitb.ac.in/academic/syllabus.html#m40 indicate a substantial content overlap with CSE courses, so this would not be allowed.
   Decision made online via email discussion by DUGC 15 Jul 2014.
2. EE 706 (Communication Networks)
   This has too much overlapping content with the CS UG networks course contents. --Bhaskar, 14 Jan 2015