Congrats on the wedding :)
What comes to mind if you are thinking of bbq is skewered meats and fruits and veg of all kinds - if you like Indian - there's so many variations you could do. That way if you have veg kebabs and lots of rice and dahl type dishes, you also cater for vegetarians. And it could be done family style per table with lots of dipping sauces, flat breads, curry side dishes, salads, rice/bean dishes. If you think the majority of your guests would like it. Think Bollywood. Re the skewers - easy for caterers to prepare ahead, fun for guests to eat, all can be bbq'd and people can make a combo from what is done family style on their table as to their particular tastes, wrap it in some flat bread, and watch the fun as the sauces dribble down their chins :D It's a very interactive type of eating, and breaks the ice amongst people who may never have met before but you have to seat together. They will need to ask one another to pass this that and the other, or ask -How am I supposed to eat that? :) Someone will chip in with an answer - gets them talking.
I'd love to see a wedding feast like that.
You could have lassis served with the curries for a very different kind of drink to cool the heat of the dishes too, for something memorable, apart from the usual alcoholic drinks.
For dessert - stacks of platters of seasonal fruits which should be in season by then, I'm sure your caterer will have some ideas on this. Or, fruit kebabs done on bbq served with yoghurt and honey topping.
Just some thoughts ...Good Luck!
