Hello student cut off vary every year on various factors like the level of question in the entrance examination and total number of number of applicants in that examination.

Last year the cut off was around 6549,so you need to secure rank around 6500.

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/amp

Feel free to comment if you have any doubt

Good luck