Delhi College of Arts and Commerce, University of Delhi

Hi Shubhangi,
I am assuming you meant Delhi College of Arts and Commerce. If that is so, let me tell you that admissions to courses in journalism and mass media at DCAC are purely based on the percentage of 12th. The best of four subjects is calculated (one language subject being mandatory) and then, it is based on the cut-off list.
All the best.

Yes, you can get admission in DCAC for B.Com as the eligibility criteria is to pass 12th with more than 40% that you have already accomplished.

Congratulations, you scored very well. Coming to your question admission depends on your course which particular course you want to pursue on the basis of top 4 subjects marks aggregate. If you are somewhat interested in doing B.Com(Hons.) or economics honors then 93% is not enough to get into DCAC but you can get various good colleges if wait for cut offs to dip. You have chances in Motilal College, Rajdhani, DDU, Ramlal, Shivaji and various other good colleges.
Have patience and wait for the cut offs to dip, don't do hassle work. Best of luck .

They include it in best four but deduct 2.5% from the best four subjects' percentage, as the rule says that if the best four subjects include any other subject than maths, they deduct 2.5% from overall.

It is very difficult with such percentage to clear any cutoff of DU for mass communication. You should surely apply in IPU to mark your chance their.

The eligibility in Delhi College of Arts and Commerce for B.Com(Hons.) is 93% for general category.

No, it is not possible, if you don't have any reservations.

With 90.6% you can't get in Delhi College of Arts and Commerce for pursuing B.Com(Hons.) but don't lose hope you can apply for various off-campus colleges in Delhi University as well as some South campus colleges.