Hello student, even if the paper was easy, the cut off marks depend on many other factors like the number of students appearing for the examination, the number of students getting same marks in overall paper and in each subject of the paper, etc. All these factors decide the cut off.. The number of students appearing for the examination is increasing every year which is a major factor in the variation in the cut off marks. Therefore, even if the paper was easy the cut off marks may be around 550-600. 

Good luck! 

Dear Sir/Ma'm, the cut-off for All India Quota was around 540+ in the previous years. Generally, all India Quota has higher cut-off than the respective states. All India Quota cutoff can never be as high as 600+. State quota will also be not this much, as states have lower cutoffs than all India.