Commerce

Firstly, your main preference should be the marks you have to score well. In class 12th, only on this basis, you will get the college as per you. Score around 98 to 99% to get admission.

Yes, you can pursue this course.
B.Sc in Hotel Management is a 3-year full-time undergraduate course, the minimum eligibility for which is a Higher Secondary Certificate (10+2 qualification) with a minimum aggregate score of 50% in best four relevant subject.

There are no specialist subjects at the level of class 12th for the career that you intend to pursue. You can choose any stream/subject and later pursue this course.

Yes, you can apply. There is no problem in applying.

You can get admission to other good colleges of DU in the south campus of Delhi University. The cutoff at the north campus started from 98%. Last year. But, it can vary this year also.
Since you asked about bcom honours, maths has been made compulsory. They will reduce your percentage by2.5% for maths but you can get admission to the course without maths also.

Firstly, complete your graduation, because without graduation you cant be proceed with this MBA.

Hello,
The general rule is that a student must have the subject in class 12th, which he/she desires to pursue for graduation. In your case, as you have maths in class 12th, you can pursue graduation in maths. Best wishes to you.

Hi
It is always better to pursue your field directly. Visit this link:
https://www.shiksha.com/mass-communication-media/film-tv/colleges/colleges-india?rf=searchWidget&landing=ctp

For BBA, you do not need maths in your 12th. But please check the prospectus of the course provided by the college once to get all the details regarding eligibility, admission procedure, etc.