Hello,
There is no category wise analysis for marks and rank. NTA releases rank list category wise which depends on lots of factors. Those factors keeps on changing every year which makes it unpredictable.
If you want analysis per year then you have to check for general category.
For year 2019, cutoff for PwD was 17.5 and in year 2018, it was 12.5, cutoff for year 2017 was 17.5
For more details, please go through the link below:-

https://engineering.careers360.com/articles/jee-advanced-rank-list

https://engineering.careers360.com/articles/jee-advanced-cutoff

Hope it helps!

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