It is impossible in BITS entrance exam to score same rank because in case the total marks scored in the entrance exam is same then the marks in mathematics are considered for calculation of rank if marks in mathematics is same then physics marks are calculated for rank calculation if physics marks are also same then Chemistry marks are considered foreign calculation if chemistry marks are also same then the total marks in physics chemistry mathematics of class 12th of two students are considered in this four steps it is impossible to two students to score the exact same more marks in all the subjects.