Hello,
cutoff for IIT bombay ranges from 1-3k for different streams of engineering. Cutoff is from jee advance exam. To appear jee advance you have to clear jee mains with good marks. You have reservation category which will surely help you still try to score 60-70% of total marks of jee main exam.
Try to perform as best as you can to get an admission in IIT bombay.
Hope it helps!
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