Hey!

The exams in which you could appear for depends on what stream you had in 12th grade and also where your interest lies in. There are various entrance exams for different courses admission in several Universities and Colleges. For instance, if you want to go for law, then you have to give entrance exams like CLAT, AILET, and so on to get admission in law courses. If you had science stream and you would want to prepare and go for MBBS, then you would have to give NEET entrance exam. There are various courses to which you can take admission without giving any entrance exam. You can get admission on merit basis.  To know about the various courses after 12th, you can check out the link provided below and you can also get to know the eligibility and admission procedure.

https://news.careers360.com/cbse-class-12-informatics-practices-computer-science-exam-2021-live-updates-answer-key-analysis-sample-papers-cbse-gov-in

Hope it helps!