If you want to score 400 in NEET within 20 days here are tips you should consider

1)now you dont have time to go through all the syllabus thoroughly therefore complete as many sample papers as you can,to have better understanding of paper

2)learn short tricks either through YouTube for tme management

Thank you for your query. 

In order to get 400 and above, read ncert biology, again and again. Thorough reading is essential. You may score 300 with biology alone.

Start practicing numericals. Don't go for quantity, go for types of questions, practice variety of questions. 

Good luck 

Hey aspirant,

As such there is no trick to score 400 in neet exam. But in last 20 days you can solve precious year question paper and focus more on solved questions of previous years, concentrate more on your strong topics in physics, chemistry and biology.