Hello Menka!
First of all, congratulations you've got great marks. To answer your question, there are high chances of you getting into BA(Hons.) Economics and even B.Com. Other than these many BA(programme) gives subject with economics as one of them. Although this year many students have got above 95% in their 12th class, so the competition is really high and the cut offs will be high too. It will be difficult to get into the top colleges of DU since these courses are quite popular. Nevertheless, DU releases several cut off in which you may get yourself enrolled. Below is the College Predictor link which might help you get more insight. All the best!
https://university.careers360.com/delhi-university-college-predictor?utm_source=google-search&utm_medium=paid&utm_campaign=du-college-predictor&gclid=CjwKCAjwsO_4BRBBEiwAyagRTT8D0nYjskcW45Ti3u2JkY5eH0Zc1synko3pDOtbQuVGmsvshbzaBhoCcyEQAvD_BwE
Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile