Yoga, the Sanskrit word for "union", is a practice that uses posture and breathing techniques to induce relaxation and improve strength, and its health benefits may surpass those of any other activity. Whether you practice yoga to relax, stretch, breathe, meditate, or simply because it's in fashion, you may not realize the numerous health benefits of yoga. And while there are many different kinds of yoga, ranging from the more gentle hatha yoga to the more strenuous, like Bikram yoga (which is performed in a 105°F room) or power yoga, every form of yoga improves your health from head to toe.

Ayurveda is the knowledge that indicates the appropriate and inappropriate, happy or sorrowful conditions of living, what is auspicious or inauspicious for longevity, as well as the measure of life itself. 

Ayur means life and Veda means knowledge, so Ayurveda means the knowledge about science of life.  Ayurveda was derived from the most cherished scriptures known as vedas. They are Rigveda, Yajurveda, Samaveda and Atharvaveda.

Spa treatments are the services that a spa provides. The most popular spa treatment in the India and a good place to start is massage. It has been around for thousands of years and has a number of health benefits.

Other popular spa treatments include facials and body treatments like salt glows and body wraps.

Most spas have a nail salon offering spa manicures and spa pedicures . Spas with salons offer hair cutting and styling services.

Once you've tried the basic spa treatments, you might want to branch out to different types of massage like Thai massage , hot stone massage or reflexology. You should talk to your esthetician about what facial services or body treatments would be most appropriate for your skin type.

Remember, the most important thing you can do to enjoy your trip to the spa is arrive at least 15 minutes before your treatment is scheduled to begin. That way you can check in, change into your robe, and start to relax. If the spa has facilities like a sauna, steam bath, or hot tub, arrive even earlier.

Some useful links
http://www.anandaspa.com/content/default.asp
http://www.somatheeram.in/
http://www.kairali.com/ayurveda.asp?resortId=1