Hii Ashutosh
What you have scored in class 12th boards percentage is an average score .  You are eligible for applying to the Delhi University colleges for pursuing the course of Bachelor's in economics honours as the minimum eligibility marks are 60% But ,Unfortunately this much percentage is not sufficient for getting admissions in the top notch colleges of the Delhi universities north campus like the Hansraj,SRCC,Ramjas,Hindu or even the top south campus colleges like the Sri venkateswara or even Shaheed Bhagat singh college for pursuing any of the courses you have listed above they all require a percentage of 95+ for getting admitted in a good college. You might get some of the low grade colleges which come under the south campus. The situation is dicy as you belong to the unreserved or the general category and also depends on the cut offs of this year . All the best . You can use the Delhi university college predictor developed by our experts -https://university.careers360.com/delhi-university-science-college-predictor
You can wait for the actual cutoffs of the different colleges to be uploaded on the official website of the university of Delhi - du.ac.in .
You can reach out to us for more helps
Hope it helps
Thanks