Emus require simple food. You should plan feed as per the age of the bird. Emu require plenty of water to drink. Always keep fresh water in the pans.
In India there are no specific feed prepared for Emus. However one can start with regular poultry feeds with addition of greens. Alfalfa leaves, Lucerne, stylo, Desmanthus. Chopped green vegetables, cauliflower leaves, fruits like grapes, watermelon. Chicks and adult birds can be given crumble feed. You can also add Soya crumbles for additional protein.
Sprouted green gram can be given to Breeder birds at the time at breeding season to increase the overall reproductive performance.