Hey Nikhil, 

For admission to any first degree program in bits  student should have passed their 12th or 10+2 examination from a recognised central or state board or its equivalent with physics, mathematics, and chemistry as core subjects. Students must obtain a minimum of 75% aggregate in these subjects and at least 60% in each individual subject to be eligible for the examination along with adequate proficiency in English. 

Sorry to say but Nikhil you are not eligible for this exam. 

Please don't give up and try for some other College.

For any further information regarding eligibility in BITSAT please refer to the following official link.

https://www.bitsadmission.com/Eligibility_Criteria.aspx

Thank you.

Good luck!

Hey.

If you belong to the general category, then as per the eligibility criteria laid out for BITSAT then you need to score a minimum aggregate of at least 75% marks in Physics, Chemistry and Maths together. Other than this you also need to score a minimum 60% marks in each individual subject of PCM. As your marks in Maths is less than 60% and aggregate is also less than 75% you dont seem to be eligible.

Best of luck