Hello Shani, 

You can find the JEE Advanced subject wise cut off for various colleges here :  https://www.google.com/amp/s/engineering.careers360.com/articles/jee-advanced-cutoff/amp

The exam itself doesn't have separate cut offs for separate subjects. Subject wise cut off is found only in the cuts offs of the institutions or the IITs. 

hello shani 

the subject wise cutoff of jee advanced is 10% for each subject and it is not difficult to score 10% of marks  if you have prepared well. feel free to ask any doubts in the comments section. hope to see you in a good college.

hope it helps.