Hi Aspirant,
The percentage of marks which a student has to get is difficult to foretell as it depends on a number of factors.
However,the rank required might be told approximately for a oc (other category/general) student after looking at the previous year as cutoff.
If you want to look at all the seats which having preference for any specific branch,then the cutoff for IIT-B goes around AIR 2000.
Specifically for the branches,you need to mention your branch of preference to get the required answer.
Hope this helps. 

IIT Bombay

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