exercise for belly fat

most effective exercise for losing belly fat and getting a 6 pack?

a video or detailed instructions would be nice
a specific exercise would be nice

Dwichakrikasana
1. Lie down straight on your back with your hands beside and below the hips. Stop the breath. Raise one leg, bending it at the knee, and then rotate it like you are riding a bicycle. Repeat this for 10 to 30 times as per your capacity. Similarly, repeat the exercise with your other leg. Rotate the legs without touching the ground. Make a circular shape with the legs.
2. When tired lie down in shavasana and rest for some time and repeat the exercise in the opposite direction, again resting when tired.
3. Inhale, and then repeat the exercise by rotating both the legs simultaneously in a circular motion, as done when you ride a bicycle. After, repeat this in the opposite direction continuously like a bicycle. 5 to 10 times according to your capacity.
Benefits:1. This is the best exercise to reduce weight. Regular practice of this asana for 5 to 10 minutes sheds out unnecessary weight, and obesity can be reduced in a very short time.
2. It gives proper shape to the stomach. It activates the intestines. It cures constipation, dysentery, acidity etc.
3. In case of backache do the exercise with single leg, it is helpful for backache as well.
Padvritasana
Method:1. Lie down straight on your back. Raise the right leg and make a circle by rotating the leg clockwise. In this way make 5 to 20 circles without touching the leg to the ground.
2. After rotating in one direction, rotate the leg in the opposite direction (anti-clockwise). Rest in shavasana when you become tired. Alternate between legs.
3. After doing this exercise with single legs, do it with both the legs simultaneously. Rotate the legs in as big a circle as you can. Rotate the legs clockwise and then again anti-clockwise.
Benefits:1. This asana is also for reducing extra weight.
2. It reduces the fat accumulated in the hips, thighs and waist and gives proper shape to the stomach.
Ardha Halasana
Method:This asana is like uttanapadasana – the only difference is that in uttanapadasana the legs are raised up to 30 degrees whereas in ardha halasana the legs are raised up to 90 degrees.
1. Lie down on your back. Keep the palms of your hands towards the floor; your legs should be straight and both the feet should be together.
2. Inhale and slowly raise the legs straight up to 90 degrees and remain in this position for some time. Do not bend the knees when you raise the legs.
3. While bringing down the legs, rest the legs on the floor without jerk. Rest for a while and repeat it again at least six times.
4. Those who have backache, should raise one leg at a time.
Benefits:1. This asana is especially useful to reduce weight.
2. It makes the intestines flexible and healthy, increases the fire of the stomach and cures constipation, gas and obesity.
3. It is also beneficial in shifting of the navel, heart disease, stomachache and respiratory problems.
4. Raising one leg at a time is especially beneficial for backache problems.

. This may include brisk walking, cycling or swimming etc. Also if various yoga asanas are performed it results in the gradual reduction in the weight of an individual.
Yoga postures and positions reduce down the fat of areas that need to be most worked upon. These yoga asanas may include forward bends, backward bends, and twisting of hips. Therefore following yogic asanas are when regularly performed they bring about the reduction in stomach size as well as fat:
•Kapalbhatiin the toning up of the tummy muscles since it increase the respiration rate thus causing the burning of fats and toxins that have accumulated into the body to be dissolved. Apply pressures on stomach inwards to breathe out all the air inside your stomach. Now relax and bring back the muscles to the normal position. Then again apply pressure on the stomach to clear out the air.
•Anulom Vilomis also a breathing exercise for whole of the body, along with the stomach.
•Sukhasana or the Butterfly is useful to provide strengthening to the spine lengthening of leg muscles making them strong as well as providing them with the strength to bear on the weight of the whole body.
•Also there are various asanas which when performed they bring about the reduction of accumulated fat while enacting on the specific areas that are very prone to accumulation of fat. As Mandukasana, Marktasana, pawan mukutasana, makrasana, Bhujangasana etc.
hus all the yogic asanas benefit and bring about the reduction in the fat via means of increasing the respiratory rate that in turn increase the burning down of accumulated fats in the body.