Hello Ankit,
If you have a flair in drawing and posses a good general aptitude and are good in the subject of mathematics then by giving the JEE paper 2 and scoring well you can get a great government college.Architecture,nowadays has a lot of scope,especially graduating from a premier institute provides a great scope for progress in this field with time,also you need practice in 3D drawing.There is also the option of the exam NATA.Private or deemed to be universities have their own entrance exams and eligibility criteria.
Event management can be a business idea or you can join a event management company after a specific course.You need to be good with people,have profound administrating skills and be creative and full of ideas to make every event stand out in an efficient way.