Serena, Haveli Banquet & Fortress events complex are 3 places our family have managed few events during past 18 months.
all 3 places have a blanket charge for base minimum guests per head. unless you visit and view the location to suit your budget & number of guests it will be a tough decision.
you being a guest there means you shall look for a convenient place for others to arrive at the venue.
I suggest discuss with the people on ground there and your well wishers'