Hi Jaya

IIT Bombay is one of the best college of engineering in India. It is a matter of great honour if you are passout from this college.

In order to get admission in IIT Bombay you need to get very good rank in JEE advanced. Moreover JEE main marks only act as eligibility criteria to get qualified for JEE Advanced. Moreover JEE Advance exam pattern keep change every year. So the exact prediction would be tough. Nevertheless let us see the cutoff:

The data is of round seven and is all india category rank.

Category.                Closing rank

General.                    63

OBC.                         37

SC.                           21

ST.                           15

Now accordingly you can calculate marks. You must be getting around 300.

For more information please check the link below: https://engineering.careers360.com/articles/jee-advanced-cutoff-for-iit-bombay

Thanks