Each side may only strike the shuttlecock once before it passes over the net. Play ends once the shuttlecock has struck the floor or if a fault has been called by the umpire, service judge, or (in their absence) the opposing side.[1]

After the service is returned, either you or your partner may hit the shuttle from any position on your side of the net. Then either player from the opposing side may do the same, and so on, until the shuttle ceases to be in play.

A service court error has been made when a player has served out of turn, has served from the wrong service or standing on the wrong service court while being prepared to receive the service and it has been delivered.

If a service court error is discovered after the next service had been delivered, the error shall not be corrected. If a service court error is discovered before the next service is delivered, the following rules apply.

If both sides committed an error, it shall be a 'let'. If one side committed the error and won the rally, it shall be a 'let'. If one side committed the error and lost the rally, the error shall not be corrected.

If there is a 'let' because of a service court error, the rally is replayed with the error corrected. If a service court error is not to be corrected, play in that game shall proceed without changing the player's new service courts.

You score a point and serve again from the alternate service court when your opponent makes a 'fault' or the shuttle ceases to be in play because it touches the surface of your opponent's side of court.

No points will be scored when you make a 'fault' or the shuttles ceases to be in play because it touches the surface of your side of court. The serving right will then be transferred to your opponent.