Doubles service follows the same basic serving laws as singles, but the order of serving and receiving is more structured because four players share the court. At the beginning of a game, the side that wins the toss serves first from the right service court because the score is zero, which is an even number.
Whenever the serving side wins a rally, the same player continues serving, but switches to the opposite service court because the score has changed. If the serving side loses the rally, service passes to the opponents, who serve according to their own score and established service order.
The server must always deliver the shuttle diagonally into the receiver's correct service court. Every player has a designated position within the service sequence, making the order just as important as the serve itself.
For a complete overview of badminton fundamentals and match structure, explore our badminton guide.