In 1 kg cooked biryani rice, there will be 7 to 8 chicken pieces for a good serving. Normally 4 to 5 people easily eat 1 kg. If you want to make it for a party then multiply the quantity accordingly. For example; if you want to make 5kg biryani then use 5 kg cooked rice with 5 kg chicken (35 to 40 pieces of chicken). Always use a spacious and wide pan or pot to cook large quantity. 5 kg cauldron (daig) is best.