How can I loose 10 kg just in 10 days..

Can't be done.

Any significant weight loss in a short time is mostly from water loss. But I doubt you can't lose that much water in 10 days.

To do it healthy, you would lose 10kg in 10 WEEKS. If you were to lose it in 10 days, you would likely be dangerously dehydrated and in risk of some pretty serious complications like death or permanent liver or kidney damage.