Yes, there is still time to study for the NEET exam and score 600 marks if you are dedicated and follow a structured study plan.

Here are some tips on how to crack 600 marks in NEET in a single attempt:

1. Create a study plan: Make a schedule that allows you to cover all the important topics in each subject. Divide your time equally among all subjects and set aside some time for revision.

2. Focus on basics: Ensure that you have a strong foundation in the basics of each subject. This will help you understand the advanced topics better.

3. Solve previous years' papers: Practicing previous years' papers will help you understand the exam pattern and the type of questions asked. It will also help you identify your strengths and weaknesses.

4. Mock Tests: Take mock tests regularly to assess your preparation level. Analyze your performance and work on your weak areas.

5. Revise regularly: Revise the topics you have studied regularly. This will help you retain the concepts better.

6. Stay calm and confident: Don't panic or stress during the exam. Stay calm and confident, and attempt the questions to the best of your knowledge.

In conclusion, with dedication and a structured study plan, you can crack the NEET exam and score 600 marks in a single attempt. Start your preparation now and stay focused on your goal. Good luck!