Find the central meeting location for your chapter. Contact the 2-3 best hotels in that central place and tell them you will be a very good client. You will meet every month, will have about 100 people and it is strictly business. Buffet style banquet is preferred to plated dinner. Be sure to include several vegetarian entr es.
Alcohol is no host.
If they let you cater Indus food from outside, fine. If not, they may allow you to do so in the future because you will be a good customer. Select the weekday that you are going to hold your monthly meeting. This is crucial. Stick to the 2nd or the 3rd weeks.