Hey there

Cutoff can only be predicted after seeing the toughness of the question so at this time predicting the cutoff is of no use. Also do not think of just clearing the cutoff as if you'll just clear the cutoff then also you'll not get any good colleges. So try score atleast more than 130+ for good colleges.

Check about jee mains 2020

https://www.google.com/url?sa=t&source=web&rct=j&url=https://engineering.careers360.com/exams/jee-main&ved=2ahUKEwj9zpbag6vlAhUFcCsKHR1wCBMQFjAAegQIBBAB&usg=AOvVaw1k3rMyr-Osb0qy4gsPfOaR

Good luck