Hello Aspirant, Marks can vary from year to year depending upon the total marks of paper as JEE Advanced Total marks is not fixed, as JEE Mains Total Marks is fixed, JEE Advanced Paper full

2015 - 504 marks

2016 - 372 marks

2017 - 366 marks

2018 - 360 marks

2019 - 372 marks

But Closing Cutoff rank remains almost same, For getting Computer Science and Engineering in top IIT's like IIT Bombay, IIT Delhi, IIT Kharagpur, IIT Roorkee, IIT Madras, your rank should be less than 500 in JEE Advanced.