Hi Madhura,
In order to be eligible for the MCAT examination, international students generally have to have completed an MBBS degree or have to be currently enrolled in an MBBS program.
In your case, as you have completed a course which is not MBBS, then you will need to obtain special permission from the officials in order to be eligible to sit for the MCAT exam. You can find the details for the process of obtaining special permission on the official MCAT web portal:
https://students-residents.aamc.org/applying-medical-school/taking-mcat-exam/
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