As per previous year cutoff ranks, to get CSE in BIT Durg, you have to score around 120 in JEE Mains which is equivalent to around 95 percentile. and to get other branches, score around cutoff is acceptable.
Check this link to know more about JEE Mains 2019 Marks Vs Percentile: https://engineering.careers360.com/articles/jee-main-marks-vs-percentile.
Best of Luck.
Hope this helps.
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