hello aspirant, the minimum elligibility in banaras hindu university is 50% marks in 10+2 to get admission in b.sc courses. however cutoff changes every year, it depends on seat matrix, questions difficulty level, candidates category etc. however cutoff marks for obc candidate was 231 from previous year data. follow below link to know more details

https://university.careers360.com/articles/bhu-uet-cut-off