Hello Aspirant,
Yes of course there is horizontal reservation of PwD category in IIT Bombay like if you belongs to General category and you have PwD certificate then you will be considered as Gen-PwD candidate. As we go through the latest cut-offs of 2020 then it shows that the closing rank for Gen-PwD category was 2 for CSE branch in IIT Bombay. Likewise with other branches, so if you want to get IIT Bombay and you belongs to Gen-PwD category then you should aim for your category rank under 150 in JEE-Advance 2021.
You can check out the latest cut-offs from the link given below :-
https://josaa.nic.in/Result/Result/currentorcr.aspx
Note that the above prediction is made on the basis of latest cut-offs available on official website of JOSAA and the cut-offs are bound to change every year depending upon various factors such as the number of candidates appearing in an examination, the number of candidates qualifying an examination, difficulty level of the paper, and so on.
To have a list of all those colleges which you can get based upon your JEE-Main score, category, and state you can use JEE-Main College Predictor :-
https://engineering.careers360.com/jee-main-college-predictor?icn=QnA&ici=qna_answer
As you are preparing for JEE-Main or JEE-Advance 2021 the I would recommend you to check the resources made by our experts to help aspirants like you in the best and smart preparation of JEE-Main or JEE-Advance 2021 :-
https://learn.careers360.com/jee-main-coaching/?utm_source=%20QnA
I hope this information helps you.
Good Luck!!
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