I bought the lenovo G500s laptop about an year ago online from snapdeal. I am quite satisfied with the product, I bought in the first place because of its features, it has dolby surround sound, and nvidia interactive graphics which makes it a better option for playing games on it.
I recommend to buy this product because it might be in your budget I got it for 34000rs . The laptop has windows 8.0 though you can update it to 8.1.