What is the difference between exercise and yoga practise ?

First of all that depends on you, what you mean by the word "exercise" and why a person take exercise at all. Because they want to be fit, live longer and finally improve their imagine and make them look better. We cannot say all these are false claim. But exercise mainly builds the body and neglects the mind side. There is a common misconception that yogic exercises are physical exercise. But the basic difference is - physical exercises are repetitive movements, whereas yogic exercises involve a very little movement and are only postures which are to be maintained for a period of time. That's why this is called yoga asana means yoga postures, which should be static and comfortable. Yoga postures tone up body and mind, whereas physical exercise affects mainly the body. In yoga postures we use less energy and can store that energy to use for something better and greater, but in exercise we use the whole energy in the gym, get exhausted and fatigue. As because the yoga postures are static, we can engage out mind to focus or concentrate on the particular part of the body with the help of the easy breathing which results to minimize stress and tension and tones up both body and mind , gives a feeling of relaxation and exhilaration. Yoga postures are not meant to increase the muscle mass, on the other hand they are meant to improve the functioning of the internal organs, including glands. And the main advantage of yoga is - it is applicable for the people of all age, even for the week people. We can use yoga as a preventive measure and also as a therapeutic treatment for different diseases.