1) Start in a push-up position where your hands are wider than shoulder width apart at your chest level, legs fully extended, back straight and chest out. Keep your feet close to each other.
You should form a diagonal line starting from your feet to your neck.
2) Inhale and lower yourself down by leaning towards one side (working side) keeping your working arm's elbow close to your body. Your supporting/assisting arm (the opposing side to which you are leaning) needs to be fully extended.
3) Exhale and push yourself back to your starting position.
Alternate between sides with one rep counting once you have done a push-up on by leaning on both your right and left side.