Hi Rishu, jee-main cutoff vary year by year.this year expected cutoff will be according to the various coaching institutes is >=45(for OBC).last year cutoff was 49 for OBC category.so if you score 60 marks then you will be qualified for next exam (Jee-advance).

if you want to know about more then check it out given link :

https://engineering.careers360.com/articles/jee-main-cutoff

good luck