Lose weight ina week

I don't think so! Where did you hear something like that? There are several diets that promise weight loss within a week, but I wouldn't count of them. If you want to lose weight then the best option is to take your time and do it slowly. When it comes to losing weight miracles don't happen. Liposuction is the fastest way to lose weight and this procedure is relatively safe as well. The fat is sucked out of your body and you will be able to lose more than a few kilos in a few days. Maybe you can opt that.

Hi Pallavi,
If you are targeting only half a kilogram then yes you can surely reduce. More than that would be a unhealthy way. 1 kg of fat consists of 7000 calories which means you need to put a deficiency of 7000 calories through your diet and workout to achieve 1 kg of weight loss at the end of a week.