Hello there,
According to 2019 the cutoff for OBC category was around 141 and 144 and that too in the rounds 3 and 5. So it's difficult to say if you will get the main campus or not.
I'm attaching a link for your reference. https://www.google.com/amp/s/university.careers360.com/articles/allahabad-university-cut-off/amp
Hope this helps you
Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile