Hello Jasleen,
Greetings. Hope you're doing well. Well, there are a lot of options available after you've completed your 12th grade in commerce stream. You can go for bcom, bcom honours in any particular subject you wish to, or professional courses like CA or CS. Other than these typical courses, there are a variety of other options available and it can be decided on basis of your interest and flexibility to make a career in a particular field.