greetings mahfooz,

the marks you require depend upon the course that you will opt for.

i am assuming that you are looking for undergraduation admission.

pls refer to delhi university previous year cut-off to get an insight of the marks requirement for various undergraduate courses:

http://du.ac.in/cut-off.html

you may also get admission in jamia milia islamia in the muslim quota. following is the link to apply:

https://www.jmi.ac.in/

https://jmi.ucanapply.com/Entrance/entrance/?app-id=UElZOTAwMDA0MA==

you may furthur get admission in ambedkar university in delhi.

http://aud.ac.in/admissions2019

you can apply for BBA OR BA hons economics at delhi technological university.

http://dtuadmissions.nic.in/

hope this helps.

good luck!