For closing and opening ranks go to collegepravesh website and check out the cutoffs

now 12th marks are not considered during the admission through JEE Main.

you only have to worry about your JEE score.

all the best

To take admission in Jamia College Delhi your Jee main score should be high .No specific data available on any website about opening and closing rank course wise but you can find Jee score required to get admission is given in this link:https://www.motachashma.com/entranceexam/201186/jmi-btech-result

You know about this exam in details on this link:https://engineering.careers360.com/articles/jamia-millia-islamia-jmi-btech-admissions

Hope this helps you.If any queries remain than comment .