Georgette's light weight is exactly what makes it slip if it isn't pinned right. Here's how to get a clean, secure drape that lasts the whole evening.
A well-fitted petticoat in a matching or skin-tone shade gives the pleats something to grip. Georgette needs a slightly snugger petticoat than cotton or silk.
Make 6–8 even pleats at the front, keeping the fabric taut as you tuck. Georgette's slip means you'll want to pin the pleats at the waist before tucking fully.
Pin the pallu at the shoulder in two places — once close to the seam, once a few inches along — so it doesn't slide during the evening.
A final safety pin at the waist, through the petticoat and the first pleat, keeps everything anchored through dancing, sitting and photographs.