Hello aspirant,

Below 1000 AIR can always guarantee your admission in IIT Bombay. The cut-off changes every year as it depends on various factors but you can check the closing ranks for previous years to get a better idea:

The closing rank of IIT Bombay in 2018 was 5628; in 2017 was 5116 and in 2016 was 4880.

For more information you can go through the following link: https://engineering.careers360.com/articles/jee-advanced-cutoff-for-iit-bombay

Thank you.