B.A

No, one will not be allowed to get transferred from first year of one degree course to the other even in the same university. The logic for this is that a degree course is one whole of three years; one cannot take parts from two whole and create a new whole. Even if one was allowed what would that degree be known as? It will neither be a BA nor a BMS. Furthermore, these two courses are from two different faculties. BA is from Humanities & BMS from Commerce. There can never be any merger of two entirety different things.
However, if one has realized after spending a year in BA that this is not what one wanted to do, it is still not late. Even if one loses a year I would advice to start in the course one wants to do afresh. But before that decision, be sure what you want to do. In introspect, jot down the points that come to your mind, figure out the pros and cons of your decision and make an informed choice.
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KG Arts and Science College is a college located in Coimbatore, Tamil Nadu, India. It offers undergraduate and postgraduate courses in arts, Science, and commerce. To be considered for admission, you will need to meet the eligibility criteria for the specific course you are interested in and also follow the application process of the college. The eligibility criteria vary based on the course you're applying for, but generally, you need to have completed your higher secondary education (12th standard) and have obtained the required marks or grades. Some programs may also have additional requirements such as entrance exams or personal interviews. The application process typically includes filling out an application form and submitting it along with any required documents such as your education certificates, proof of age, and passport-sized photographs. You may also be required to pay an application fee. It's always a good idea to check the official website of the college for the most up-to-date information on eligibility criteria, the application process, and any deadlines. You can also contact the college's admission office for further information and assistance with the application process.