Hi,

The prospectus for AIIMS MBBS 2019 is yet to be released. However, going by previous year AIIMS MBBS exam, your daughter is eligible to appear for the exam. If she has passed the Class 12 examiantion of a foreign university, then to be equivalent to the 12th class under 10+2 scheme/intermediate science examination, you will have to make sure that you have the equivalence certificate. You will be required to produce a certificate from the concerned Association of Indian Universities to the effect that the examination passed by her is equivalent to the 12th class under 10+2. 

Further, as to the marks, she can enter the marks of PCB and English as it appears on her marksheet. If its in the form of CGPA grades, you will have to apply the conversion factor as approved by the respective examination board.

Hope it helps. 
Good Luck!