Hi Dear,

The score which you can increase in last 20 days of JEE main depends on your preparation till date and the score which you are currently getting. The same also depends on your grasping and studying capacity. However, if you practice hard a student can have full potential to maximize his score if he/she already has command over the basic syllabus of JEE and has already gone through it atleast once. Focus on practicing and making the best of your preparation in last 20 days. However, this time should be given to revision and not on studying many new topics.

You can refer to following link for best preparation through our IIT/JEE knockout programme:

https://learn.careers360.com/knockout-jee-main-april/

Good Luck