Basic principles for players

Basic principles before you start to hit the shuttle :

Body Posture
1) Always ensure your chest is almost parallel to the net.
2) Legs slightly wider than your waist to allow some stability
3) Your upper arm holding the racket is almost close to shoulder height
4) Racket face is almost or close to facing the opponent's court
5) Racket face is within your sight align with your opponents court

Engagement
1) Ensure wrist is slightly flex backwards upon approach to strike the shuttle
2) Dominant leg move together with dominant hand upon engagement towards shuttle
3) Try your best to strike the shuttle before it dips below the white tape of the net
4) 99 percent wrist work to strike the shuttle
5) Ensure at all times that your dominant hand is never full extend to strike the shuttle.
6) Maintain minimum angle between wrist and lower arm, between lower arm and upper arm and between upper arm and body.
7) Upon contact, ensure wrist action is towards opponent's court and application on force is to it's maximum.

Serves
1) Always serve shuttle using thumb grip, (underarm serve)
2) Serve close to the opponent's T junction (after the front service line
3) Use elbow extension for low serve
4) Use elbow extension movement together with wrist action to flick shuttle to back court (not advisable as you are opening to an attack)

The Court
1) There are basically two service lines. The front service line is to ensure all shuttle serves regardless of singles or doubles have to get pass this line. Whereas the rear service line before the outer line is meant for doubles serves. This is to ensure any flick shots during serve cannot get pass this line.
2) There are two side lines.

The inner side lines is for singles game, whereas the outer side lines is for the doubles game.