Suggest best Home theater speaker system for Sony BRAVIA KLV-48R482B TV

Hi, I have been planning for long to buy a home theater system to work with my TV which is Sony BRAVIA KLV-48R482B , sound of TV is good but I need something which is better, louder and clearer. I sometimes use it to play games and at that time I really miss a powerful music system for my tv. So friends suggest me a good home theater system for this TV specially for video game playing . But I also like music. My budget is 20000 rupees max.

Awaiting inputs.