Hello G Kannan,

Unfortunately on such percentile in CAT 2020 you cannot get any of the B-School even after considering your caste reservation because the B-Schools which take admission through CAT score they at least requires 50-60 percentile or above and if you want to go for IIMs then your CAT percentile should be more than 95 and you should clear the sectional as well as overall cut-off percentile. Also the percentiles which you have mentioned does not even qualify the minimum cut-off criteria setup by different IIMs and some B-schools which you can check out from the link given below :-

https://bschool.careers360.com/articles/cat-cutoff

So I would personally recommend you to either prepare for CAT 2021 or if you have filled application form for any other Management entrance exam then prepare for it and don't let demotivate yourself, just learn from the mistakes which you have made in CAT 2020 so that you do not make those mistakes again.

I hope this information helps you.

Good Luck!!