Both Knee Lift With Side Bends
This exercise give shapes to your waist by using your oblique muscles to burn fat from the sides of your tummy.
Sit at the end of your chair with a straight back
Grip the armrests tightly with both hands.
Lift both knees to your chest
Repeat 10-20 times

Toe Touches
This exercise will reduce fats of your sides of your belly and your hips.
Keep your feet on the floor as wide as the chair
Extend your arms about shoulder height
Turn your body to the right, bend, and touch your left foot with your right hand
Hold this position for a few breaths
repeat this same for left side too and
repeat 20-30 times, alternating sides properly.

Full Body Lift
This is bit difficult but it burns fat fast. Your belly, back and shoulders will be toned.
WARNING: before you start this exercise make sure that the chair is stable and that the legs/arms can fully support your weight. Do not try this exercise on a chair with wheels.
Sit on the chair and hold the arms of the chair tightly.
Lift your body above the seat, so that your hips and legs hang in the air.
Use your abdominal muscles to raise your knees to your chest
Hold this position for 15-20 seconds, then slowly lower down
Repeat this 4 times

Knee-to-Elbow Lift
Good for your waist, this exercise works your oblique and lower abdominal muscles.
Sit with your back straight, do not let it touch the chair
Put your hands behind your head
Lift your right knee to your chest
Twist and bend your torso so that your left elbow touches your right knee. Repeat 15 times.
repeat same for left side.

Oblique Stretches
This helps to strengthen your glutes and will encourage your body to burn fat on your waist and belly.
Stand beside the chair and place your left hand on the chair
Raise your right hand above your head
Lift your right leg and bend the knee so that your heel touches near your bum
Slowly lower your right hand so that it can touch the heel of your foot
repeat 10-15 times