The JEE Advanced cut off is decided based on the following factors:

• Number of students appearing for the exam
• Student’s performance in the exam
• Number of seats available
• Difficulty level of the exam
• Previous year cutoff

JEE Advanced Cut Off 2019 is yet to be released but i think previous year cutoff will give you some idea

Category - Common Rank List (CRL)

Minimum Marks in Each Subject - 12

Minimum Aggregate Marks - 126

Minimum Aggregate Marks (Revised) - 90

According to my knowledge paper 1 and paper 2 cutoff is all together they are not provided separately.