MBBS

US and Canada are top most options however these countries don't have direct MBBS. One must first complete a Bachelor's and then apply for medical studies.

Hi, To study abroad most universities have international accepted entrance exams SAT IELTS which is the main criteria for selection. Also, class 12th scores are also counted.

You can't pursue medicine without taking biology in class 12th.

You have to appear for Medical Common entrance examination. For veterinary also there is separate exam.

Go through the below link from official website. All the courses are mentioned there:
http://www.aims.edu/aims/academic/course1.htm.

First and foremost, NCERT physics, chemistry and biology books for class 11th and 12th are a must for AIIMS exam preparation. Apart from that, there are additional books that you must seriously consider while preparing for AIIMS entrance exam. Refer to books like:
Arihant AIIMS MBBS Entrance Test. AIIMS Explorer MTG. AIPMT/AIIMS 2016 Success pack. HC Verma Physics Theory. DC Pandey Physics Numerical. Organic Chemistry Arihant. Inorganics Chemistry by OP Tandon.

Hi,
NEET MBBS West Bengal Rank List: Previous Year NEET CutoffCategory-wise
Cutoff NEET 2018 Cutoff Marks (out of 720) NEET 2017 Cutoff Marks (out of 720)
General-PH -45 percentile 118-107 130-118
OBC-PH -40 percentile 106-96 130-107
SC-PH - 40 percentile 106-96 130-107
ST-PH -40 percentile 106-96 130-107.

NEET is the only gateway for admission in MBBS and BDS courses throughout India. There's no other option.

If you had biology then yes, you can prepare for NEET but that would be tough for you to manage both CSE and preparation simultaneously.