Hello,
Following are the Mandatory documents which you will be required to present to the concerned authority before admission.

• Du llb admit card
• Rank card , merit list
• Class 10th passing certificate
• Class 12th passing certificate
• Du llb application form
• Character certificate
• Degree certificate ,provisional certificate if applicable/ migration certificate of qualifying degree examination.
• College leaving certificates
• Marksheet of the qualifying degree examination
• Reservation certificate if any.

As you are not even done with your final semester exam so I believe it would be difficult for you to get admission in delhi university for llb this year.
I would recommend you to connect with the college authorities and discuss your concern with them.
This is the only way to get out of this.
Good luck