Science

Yes, St. Joseph College of Commerce can be a good option for a fresher commerce student who has completed their plus two in the science stream. While the transition from science to commerce may require some adjustment, the college offers a comprehensive commerce curriculum and supportive academic environment that can help students make the transition smoothly.
St. Joseph College of Commerce is a well-established and highly reputed college that has been providing quality education in commerce for several decades. The college offers a range of undergraduate and postgraduate programs in commerce, including B.Com, B.Com (Professional), B.Com (Travel and Tourism), M.Com, and MBA.
As a fresher, you may find the curriculum and teaching methods different from what you experienced in your plus two science stream. However, the college offers several resources and support services, including faculty guidance, academic counseling, and extracurricular activities, that can help you adjust to the new learning environment and achieve your academic goals.
In addition, St. Joseph College of Commerce has a strong industry interface and placement cell that can help you secure internships and job opportunities in leading companies and organizations. Overall, if you are interested in pursuing a career in commerce, St. Joseph College of Commerce can be a great option to consider.

If you want to change your combination from Science to commerce after completing 1st PUC in Science, you may have to repeat 11th grade in commerce stream as the subjects in these two streams are quite different from each other. The exact requirements for changing your combination may vary depending on the rules and regulations of your educational institution, so it's best to check with your school or college administration to confirm the process for changing your stream. If repeating 11th grade is necessary, don't worry, it can give you a chance to excel in your new chosen field and build a strong foundation for your future academic and career goals. Just be sure to use this opportunity to study hard and make the most of the resources available to you.

Yes, it is generally compulsory to have studied Mathematics in Class 12 to be eligible for admission to the Bachelor of Business Administration (BBA) program at VIT Vellore. The eligibility criteria for the BBA program at VIT Vellore require candidates to have completed their 10+2 or equivalent examination from a recognized board or university with a minimum aggregate of 60% marks in Mathematics, Physics, and Chemistry or Biology.
Since Mathematics is one of the mandatory subjects required for eligibility, it is likely that VIT Vellore would require candidates to have studied Mathematics in Class 12 to be eligible for admission to the BBA program. I would recommend checking the official website of VIT Vellore or contacting the university's admissions office directly to confirm the eligibility requirements for the BBA program.