Before I used to pray jumuah in my university sometimes since they arranged one there with Khutbah and I used to go there only when I had urgent studies. Is this permissible and if not must I make them up as dhuhr.

Ustadh AbdulAziz al-Haqqan

Leaving the close by masjid for jumua out of convenience is not allowed, as for if there was a pressing need or no other choice, it is allowed on the correct saying. No, you do not repeat you jumua salahs.