Hai,

You have 70% in Class 12. The admission to Bachelors in DU occurs directly based on Class 12 marks. The admission occurs with a cut-off passing through several rounds. These cut-offs vary for courses and colleges. So with just 70%, there is uncertainty with regard to your admission.

You can check for cut-off of 2018 at http://www.du.ac.in/cut-off.html