my 12th class board marks is 75.6 % but i only have 63 marks in mathematics pls tell me sir that is i am eligible for bitsat or not

Hi Harsh,
Don't worry you are eligible for BITSAT 2019.
The eligibility criteria is Aggregate marks of 75% should have been scored collectively in the three subjects. 60% marks should also have been scored separately in each of the subject.

You can enroll for the BITSAT Knockout to prepare for the exam more effectively and smartly using the smart study material (which includes chapter wise, concepts wise, most asked and most difficult questions), Advanced Test Series based on BITSAT Pattern (which includes unlimited chapter wise test, subject wise test and full mock test), adaptive time table, performance analysis (which includes Prepmeter, Strength Sheet, Weakness Sheet, Skills Graph) and Rank Predictor tool.

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Hello Harsh,
The basic eligibility to appear for BITSAT 2019 is to secure a minimum of 60% in each of the subjects of class 12. Total of 75% marks should be there in PCM.
HOPE IT HELP !!!

Candidates must have secured minimum 75% marks in aggregate in Physics, Chemistry and Mathematics/ Biology in their qualifying exam or equivalent. They also need to have minimum 60% marks in each of Physics, Chemistry, and Mathematics/ Biology subjects in the qualifying exam.