Please tell me about some good sites which teach yoga.thank you.
May be, television can help.Try channels like Astha, TLC, DD Sports, NDTV Good Times..... Turn them early morning like 6 am. Try those, and trust me, it benefits a lot. :)
Its a channel in Youtube.There are many others as well.http://www.youtube.com/show/shilpasyoga
Just Google it. I am sure that there are some free sites out there that are offering free online courses. It wouldn't hurt to check YouTube as well. Hope this helps and good luck.
You body burns 2000 calories a day just by living so if you eat less that that a day you will loose weight.