Hello Jay,
Here is the link for category-wise cutoff marks for top 20 percentile for different boards for the years 2016,2017,2018:
https://engineering.careers360.com/articles/top-20-percentile-cutoff-of-class-12-boards-for-iit-admission
For 2018 batch, the marks are as follows:
432(general), 424(OBC), 410(SC), 390(ST/PWD).
Hope it helps.
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