Hello,
With 88% marks in Class 12 there are chances of getting courses. Delhi University give priority to the student who passes out from Delhi region. But others are deprived of their seats when there is high quality marks. There are various courses available mainly B.Sc.(Hons.) in various subjects. You can select the courses you are interested in while applying online.
There is cut-off and to get into best colleges you should have about 90%<. The cut-off is published for about nine to ten rounds. You can check courses at http://www.du.ac.in/du/index.php?page=undergraduate and cut-offs of 2018 at http://www.du.ac.in/cut-off.html
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