B.A

The core difference is in the subjects. BBA will be more oriented towards commerce subject and B.A. Will give you more arts side subject. The management syllabus for both the courses remains same. BBA stands for Bachelor of Business Management. It is an undergraduate level Bachelors Degree programme. However, there also exists certain BBA programs, which focus on a particular field/discipline. Such BBA courses are known as specialisation programs. BBA in Event Management is one such specialisation course. This programme focuses on the domain of event management. BBA in Event Management course covers general management subjects. Along with them, the course also covers subjects related to the field of event management and planning. Here an overview of BBA in Event Management course
Name of the course: BBA in Event Management
Type of course: Bachelors Degree course
Duration: 3 years
Eligibility: Passed 10+2 from a recognised board
Come, let us check out some basic details about event management. Here they are
BBA IN EVENT MANAGEMENT: BASIC DETAILS
Event Management is all about using management skills to plan, develop, organize and market events. There are various types of events that students will be trained to deal with, such as- sports events, corporate events, conferences, exhibitions, fairs, concerts, family functions etc. This BBA programme trains students to plan and organize such events. The duties of an event manager includes-
Getting an idea about the type of event that the client wants
Use creative prowess and plan the event
Deal with personnel required to successfully host the event, like- caterers, security personnel, artists, VIPs etc. Purchase materials that are required to host the event, like- sound system, lighting system, utensils, generators, tent making materials (depends on the event) etc. Find and fix the ideal place to host the event. It could be at places like- auditoriums, parks, school grounds, indoor stadiums etc. Keep a check on the expenses and see that the costs do not exceed the budget
Keep in touch with the client during the planning and execution phase, get their feedback and work on it
Deal with the legal aspects related to hosting an event, like- obtaining police permission, preparing agreements with caterer.

Yes, you can definitely go for a Bachelor of Arts after science stream in senior secondary. You will not be denied admission to any course. You have the full authority to take the subject which kindles the interest in you.
Whether it might be literature, political science, history, economics or anything, you should give your fullest to the subject.
Generally, nowadays Bachelor of Arts stream is bit looked down. Your neighbors and relatives would say that you can enjoy for the next three years but never pay any attention to them. They are just misguiding you. Be careful!
Also, since B.A. will be a light subject compared to core courses, you are more likely to have more free time, but never ever waste them. Use them effectively to increase your skills and knowledge.
Spend most of your free time in the library reading those books which interest you, you can also join some extra classes for learning new things like Photoshop, Graphic Designing, etc.
If your parents allow you, go for some part-time job in your locality so that you can earn for your higher studies or you can prefer work from home also but don't fall prey to the scammers. There are thousands of them waiting for you.
Or if you are interested, start preparing for your civil service exams and other government exams which demand a degree as your qualification. Start preparing for those exams as soon as possible as you have a high chance of clearing it.
At last, what I would like to say is, whatever you are planning to do, just give your full efforts to it. Just don't waste your precious time and your parent's money.