You need to appear for the NEET examination first of all and the eligibility cutoff to apply for medical courses in somewhere as per the past yesrs was 134 in 2019 and 123 in 2018. So you need to score more marks than these scores out of 720 ib NEEt to first before eligible. And then to get a good government medical college, you need good scores and on your merit you get colleges accordingly. So usually the cutoffs for government MBBS colleges range from 480-580 or even higher. So try your best as much as possible by scoring the most marks in Physics Chemistry And Biology. And then after completing your 5.5 years of MBBS, you can then appear for NEEt PG exam and similarly on your merit you can select the Surgery stream in your desired college.

Kindly refer to the link below to more about the NEET examination, it's subjects, it's distribution and it's Syllabus...

https://medicine.careers360.com/articles/neet/amp

Best wishes. Thank you.