Hello.

Just pass is not the thing ,The candidate should have secured in 10+2 or equivalent examinations a minimum aggregate of 50% ofsubjects physics, chemistry, and any one of the following subjects: biology,geology, and geography. The candidate must have cleared all the three subjects. 

And you have still queries left then go through this webpage and still if have any please feel free to comment below.

https://www.google.com/amp/s/university.careers360.com/articles/bhu-uet-eligibility-criteria/amp

Hope this is helpful.

Good luck.