you will not get DU with 74% in B.com (//B.com) course, you should have score more than 95% so you can think about any of the campus but with 75% you will not get any.
So you can either move to the another college or give some entrance exams of good Universities like BHU, AU, AMU, WBJEE, JMI, etc. to get admission in these college campuses in your preferred course.
Moreover you can use this DU predictor link to find the possibilities of the campus in DU according to your percentage.
Delhi University (DU) College Predictor 2021 - Predict Colleges Based on your Percentage
DU College Predictor 2021 - Predict Colleges based on your 12th percentage. Know your admission chances in Delhi University's Science, Comme ...
Good luck :)