Hello student,

Commissioner of entrance examination Kerala each year conducts Kerala Engineering architecture and medical entrance examination or KEAM to provide basically B.arch BTech and B pharma courses . You should have pass your 10 plus two level with physics and mathematics as the mandatory subjects with minimum 45% marks for general and 40% marks for reserved categories. I think by common entrance Test you are meaning KEAM. Click on the link below to know more about this examination

https://engineering.careers360.com/articles/keam/amp

As per my knowledge you will not get any separate medical ranking to get admission in MBBS. If you want Medical ranking like Neet, you have to sit for Neet examination. To get chance in medical colleges in Kerala. Click on the link below to know more about medical colleges in Kerala

https://medicine.careers360.com/colleges/list-of-medical-colleges-in-kerala