For medical entrance you need to give NEET

National Eligibility cum Entrance Test (NEET)  held by the Central Board of Secondary education.

NEET exam is conducted by CBSE with 11 and 12 standard syllabus. Class 11 is most crucial so, first revise the NCERT properly. Most negative marking is developed from Class 11 syllabus as students have taken 11th lightly followed by 1 year gap thereby forgetting the basics. Class 12 syllabus should not be a problem for most students
The examination comprises of subjects such as zoology and botany under biology, physics and chemistry


For more check the given link

https://medicine.careers360.com/exams/neet-ug

Hii
Thanks for contacting career360 while after your 12th  you should do dergree in medical means every year in the month the neet will application will be out and you need to apply get prepare for it and take exam for it
Then you'll get results if thou have good rank you can get medical seat remmber you are competing with whole india
All the best