Hello disha, admission into universities for undergraduate degrees, after completion of 12th grade doesn't only depend on your percentage. Different universities have different extrance exams that need to be cleared so as to gain admission into said university. In your case Delhi University has an entrance exam for their courses and I'm addition to this another criteria to gain admission would be having above 60% in four subjects including mathematics for general category, which as per my knowledge with your 80% it will not be difficult to get into Delhi University. All the best for your Entance exam and I hope you get the college of your choosing.
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