Hello aspirant. Thanks for connecting with Careers360. I would like to tell you that securing a seat at IIT Bombay for any engineering branch is a very tough challenge for any aspirant. But your hardwork and dedication is all you need to get a seat into it. Since  you have not mentioned the category you belong to, I assume it to be General category. Based on previous year records, the opening cutoff starts nearabout 300 and closing rank ends at 850. So if you have a rank in this range or below it, then you hold good chances of securing a seat at IIT Bombay. I hope you found this answer helpful. Good luck.