Which graduation course should I opt for pursing MBA in healthcare management?

You can go through the website link of D. Y. Patil COL from here https://www.dypatilonline.com/hospitality-and-healthcare-management.php to better understand the courses to be pursued for a career in the healthcare industry.

Dear Garima, Normally for healthcare management, you need to pursue some science background course as it will be helpful for you. But, not 100 percent. Take your decision accordingly. All the best.

According to my perception, you must do B.Com and simultaneously prepare for CAT exam.