Dear aspirant,

According to your question and taking into consideration that you want to know about the marks you need to score in jee mains for iit bombay.

First of all i would like to say that jee mains score is not valid for iit bombay. You have give jee advanced for that you have to score a good score to crack it.

Dear student,

Let me clear your doubt first, that to get admission into IIT's the JEE Mains score is not valid. To get IIT's, you must have a good JEE Advanced score. On the basis of JEE Mains score, you can opt for NIT's,  IIIT's,  GFTI's and other State Govt colleges. But if you want to get an IIT, then you must have to give JEE Advance, and your score must be good in it.

And also, IIT Bombay is one of the top IIT's in India. To get into it, your rank must be very good . You can also check the cut-off for IIT Bombay to check your admission chances. The link is provided below.

https://www.careers360.com/university/indian-institute-of-technology-bombay/cut-off?college_id=116&exam_sub_exam_id=36&ici=college_view_cutoffs&counselling_id=548&caste_id=2&gender_id=1

Hope this helps.