Etoosindia is the first website in india ehich came up with the idea of online video lectures. I bought the video lectures when I was preparing for JEE and they were good. I had a HCL tablet and they installed there software in it so it was more portable through which I could study on the go anywhere. The lectures are good and the faculty teaching it is also excellent. All you need is good internet for surfing and then you can browse through the etoos software and learn.