Master the Basics
1 Always hit the center of the shuttle. You should hit the round rubber center, or the "sweet spot" of the shuttle every single time. You can practice this technique by looking right at the center of the shuttle when you hit an overhead shot.
2 Hit the shuttle at the top of its arc. To benefit from the speed and height generated by the shuttle, hit it at the top of its arc. This will allow you to hit a killer overhead and to have more control over the position of the shuttle. Don't wait for the shuttle to come close to you, or it will be losing momentum and height.
3 Always return to the middle of the court. Don't get out of position after you hit the shuttle. Return to the middle of the back of the court. This will make it more difficult for your opponent to run you around and to hit the shuttle in a place that you can't reach. Standing in the middle of the court while moving your feet and preparing for the next shot will place you in the "position of readiness."
4. Hit the shuttle toward the back line. Hitting the shuttle toward the back line takes precision and strength, and it will make your opponent have to shuffle backwards and hit the shuttle with a considerable amount of strength to return your shot. If you're not sure where to hit the shuttle next, and the back line is wide open, aim it there. At the beginning, aim the shuttle a bit before the back line so you don't commit a fault if it falls out of bounds behind the back line.
5 Practice your footwork. Badminton is like tennis -- success is all in the footwork. If you're flat-footed on the court, you won't be able to return your shots. Instead, stay on your toes, move your feet up and down as you wait to return a shot, and move your feet back and forth and side to side in tiny motions to position yourself to return the shot. Don't be lazy and reach out your hand too wide to try to return the shuttle -- instead, make tiny movements with your feet until the shuttle is in perfect position.
6 Practice the short serve. Whether you're playing singles or doubles, the short serve will catch your opponent off guard. He won't be expecting it, and may not be able to run up to return the serve in time. To hit the short serve, you shouldn't just hit the shuttle really lightly, or it will fall on your side of the court. Instead, hit it at a higher contact point and drop it closer to the racket instead of in front of the racket.
7 Practice the long serve in singles. In singles, hitting a long serve all the way to the back of the service line will throw your opponent off guard. He may be standing in front of the shuttle and can miss it completely, or he may not have enough power to return it. To hit a longer serve, let the shuttle fall in front of you as you swing your racket further back almost to your shoulder level so you generate more momentum before you swing forward and hit the shuttle.
Exploit Your Opponent's Weaknesses
8 Understand your opponent's game. When you're playing a new opponent, whether it's at a competition or during a friendly game at a family outing, you should asses your opponent's game even while you're warming up. You should look for a few main things: if your opponent is more of an aggressive or defensive player, if his forehand or backhand is his dominant shot, and any weaknesses, such as slow footwork or weak drop shot returns, that you can exploit.
9 Make your opponent move around the court. Don't hit all of your shots to the same location of the court of your opponent will be able to predict your next move every time. Instead, mix things up by hitting a drop shot followed by a shot to the baseline, or by moving your opponent from the right to the left side of the court. Moving from the front to the back of the court is particularly tricky unless your opponent has very nimble feet.
10 Hit toward your opponent's backhand. Many players are weaker on the backhand side, so try hitting toward your opponent's backhand and see if this makes your opponent return less shots. If so, continue to exploit your opponent's backhand.
11 Hit a simple short shot. When you're up at the net, simply hit the shuttle short, just barely over to your opponent's side. This will make your opponent run and will catch him off guard. This is a great technique if your opponent is positioned near the back line.
12 Change the direction of the shuttle. If your opponent hits the shuttle straight at you, hit the shuttle in a different direction instead of hitting it right back at your opponent, where he will expect it to go. This will work especially well if the shuttle has generated a lot of momentum. If you're quick on your feet, you can change the direction of the shuttle and not give your opponent enough time to react to a fast-moving shuttle.
13 Hit a drop shot followed by a shot to the back of the court. If you have mastered the drop shot, then use it to make your opponent run all the way to the front of the court. Then return the next shot all the way to the back of the court. Not only will this force your opponent to be quick on his feet, but it will also catch him off guard. This is also a great way to tire your opponent.
14 Make your opponent play your style of game. If you like staying near the net, serve short, hit drop shots, and do whatever you can to make sure that your opponent can't hit the shuttle to the back line. If you're more comfortable at the back line, then serve long and hit speedy long shots so your opponent doesn't have a chance to move you toward the net. Make the opponent lose all control as you play your style of game and maximize your strengths.
tell me when you have mastered the above and I will show you more advanced techniques.....