I attended a wedding that had 340 guest, and they handled it well.
It's not so much the capacity. Go to the hall and tell them how many people you anticipate for your party. That will dictate what size room you'll need. You can call also but going to the hall and seeing the size and layout of the room will help you determine what you need.
Yes , it has a number of rooms for party , etc...
I would suggest you call the venue - it is a huge catering hall.
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