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. It's difficult to predict exact marks to get admission into SPA Delhi as its one of the top Architecture college you need to score good. Marks around 300 will help in getting admission into SPA Delhi. Aptitude is a good section to score more so practice as much as you can the more you practice the more concepts you'll learn.

Feel free to comment if you have any doubt

Good luck