Hello Sachin,

NEET is very competitive exam, as lakhs of students apply for it. The suggestions I  would give you is 

1.Know the syllabus as you can prepare based on it

2. Go through good books and study materials

3. Solve previous year papers

4. Take mock test weekly or fortnightly

5. Concentrate more on areas in which you are weaker

For more detailed information regarding this visit the below link to know detailed strategy about preparation

https://medicine.careers360.com/tags/neet-preparation-tips

Good luck!!