Hello aspirant.

If you have scored very good marks in JEE Advanced and failed to get the minimum cutoff marks in any one of the subjects then you won't get qualified advanced. Even you score very good marks but if you fail to score minimum cutoff marks in each subject, you will be marked unqualified. Hence for the year 2019, you have to score 9% of every subject total mark to qualify in every subject. And in 2020, you have to score 5% of total mark in every subject.

Hope this answer helps you.

All the best.!!!