• The first important thing to achieve your goal is prepare a perfect time table
• Revise thoroughly through the content
• As you are going to attempt the NEET exam the first important thing is to focus mainly on biology as it is very much important to get high Score
• Preparation in biology is with the best preparation in content
• If your a through with the content you can answer to the any type of the questions
• Later you should focus on physics because it is very much easy to get the high scores
• Finally complete your preparation with the chemistry on preparing with the highest weight age of the marks
• This is one of the way which you can score easily

Hello student. It is not that difficult to pass the NEET exam in 40 days. Again, of you are aiming for top government or private colleges or aiming for mbbs in top colleges, then it is quite difficult because 40 days preperation wouldn't be enough.

Since you wish to pass and get admission in private colleges, ofcourse it is not difficult

Here are the few tips

1. First, be thorough with your text books. You should know every book and corner

2. Take previous year question papers and solve the papers

3. Take frequent  mock tests

These are more than enough to reach your goal