Hello student cut off vary every year on various factors like the level of question in the entrance examination and total number of applicants in that examination. To get admission in IIT Delhi you need to qualify Jee main examination and Jee advance examination.

Last year the cut off for Biotechnology engineering was 4403 for General  category.

I request you to please help me with your preferable branch so that I can provide you exact information..

This year you need to obtain a passing certificate only in class 12.

For more updates refer to the link mentioned below -

https://www.google.com/amp/s/engineering.careers360.com/articles/jee-advanced-cutoff-for-iit-delhi/am

Feel free to comment if you have any doubt

Good luck