Hey Akanksha,
The cut off marks for the B.Com in BHU based on the BHU UET, was 192 for the general candidates. As you have scored 188 marks this year, you do have chance to get admission if the cut off goes slightly lower than the last year. The cut offs in general do vary every year, so you can just hope for the best, till the university releases the cut off. Hope this helps, thank you for asking question here at careers260.
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