Medicine Entrance Exam

The majority of the day should be dealt with revising Biology its the most vast and requires revision daily. Physics and Chemistry must be dealt with by understanding the concept and its more of concept building rather than cramming. Practicing questions is a must.
200 questions a day of Biology (ncert level)
50 questions each of chem and phy.

Private medical colleges, after filling up their ranked seats, tend to work on a basis of marks+first come first serve basis. This allows admission for people with unfortunately low grades. I hope you'll get admission in your desired private college.

600 marks may get you a seat in state quota but not from AIQ, at least for government colleges. But many private colleges do have subsidized seats for the ones who score good but didn't get into any government colleges.

Divide your topics into the one you are sure of, the ones you need to revise, and then ones you need to learn again. The first category just revise once in every three days. The second, once every day. The third should be solidified. Keep arranging your topics accordingly.

The questions should be attempted in 2 rounds in which you attempt all the questions you are sure of, and the rest when you come back and ponder upon them according to the time you have left. It should take around 2 hours for the first round.

Any college for MBBS is more or less the same, it's just the reputation. It is recommended that NCERT should be followed only for NEET as it is sufficient to get you a good college. Don't indulge in other material that make even the simpler things go above your head.

Focusing on NCERT for Biology is a must. Every word of every line should be read multiple times, including diagrammatic text. Physics is all about practice, the more questions you do, the better you get. Chemistry is based on understanding. I recommend a 200/50/50 rule, 200 questions of Biology and 50 questions each of Physics and Chemistry each day.

Offline tests are important in a way that it gives you a feel of OMR sheet filling. There have been many cases where marks have been lost due to improper OMR filling, so practice of filling these sheets is necessary, atleast from 1 month before the examination.

You can definitely get some good private college with this rank. You can use Shiksha college predictor to get list of some possible college.

400 marks in NEET are less for getting government Medical College using All India quota. As the All India quota cut off usually goes above 500 to get admission in government medical college. But you can get admission in private Medical Colleges easily using your NEET score
But you can try some good private medical college.