Hello Nazakat

As for Preparing for NEET exam you need to go through all syllables of Class 11th and 12th for subject Physics, Chemistry,  And Biology. 

NEET exam comprises of 3 sections.

• Physics  45 Questions - 180 Marks
• Chemistry 45 Questions - 180 Marks
• Biology 90 Questions - 360 Marks

Total Questions- 180

Total Marks - 360 : 4 marks per question

For each wrong question one mark will be deducted 

You can download the syllables from the link below as well as also you can find the sample paper of NEET so to practice.

https://scoop.eduncle.com/neet-syllabus

Hope This will help you

REGARDS by Career360