Every university has their own criteria on whether or not to require an entrance exam for admission to BSc Visual Communication (VisCom) program. Some conduct entrance exams to test students on their creativity and logic, while others solely focus on the 12th-grade results. Private universities usually develop their own entrance exams while government colleges accept state or national level examinations.
Usually for acceptance into college, entrance exams tend to test a student’s fundamental design skills as well as their understanding of the media and communication at large. However, many colleges, especially in Tamilnadu and other regions, give admission based on the merit list prepared on the students’ Class XII results. Try looking up the institution’s website to see if they specify particular guidelines for more known colleges. Since you've worked on, applied, and have a passion for visual communication, you stand a good chance of getting selected regardless of how the admission is conducted. Always visit the college website for the latest updates on admission criteria.