Hey,
Entrance exam is only held in case of BBA in commerce field.
Rest of the UG courses have direct admissions
Questions are asked on the basis of your 11-12 knowledge.
There are 4 main parts of the exam

1) quants
2) English
3) verbal and reasoning
4) general knowledge

Most of the exams are MCQ and it depends upon the university.

All the best

Dear Student,

Syllabus For B.com Entrance Exam are :

1. Business studies

2. Maths

3. Accountancy

4. Current Affairs

5. Verbal Reasoning and Logical Reasoning.

6. Basic Computer questions.

Dear Sir/Ma'm, the entrance to any good college in the field of commerce requires only your 12th board marks. And if you satisfy the criteria of the concerned college you are eligible for admission there. Generally, no separate entrance examination is held .