Hello Student yes you'll get admission in reserved category if you present the valid certificate to support your category at the time of counseling. In case if you'll not able to renew your certificate then you can't get admission in reserved category.

Admission is based on the marks obtained in entrance examination.

Total number of seats offered by University of Delhi for law courses are 3320.

For more details refer to the link mentioned below - https://www.google.com/amp/s/law.careers360.com/articles/du-llb/amp

Feel free to comment if you've any doubt

Good luck