Yes, a CET passed student can take admission for MBA as an external student. There are many universities and institutions that offer distance learning or external programs for MBA. You will need to check the specific admission requirements and procedures for the institutions you are interested in. Typically, they will require your CET scores and other academic qualifications for the application process.

For further information about MBA you can go through the link attached below.

https://www.careers360.com/courses/mba-master-of-business-administration