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Manu, there have been umpteen threads that have discussed this topic. Please do a search and you will find detailed discussion with company names and addresses, and various types of bass traps and sound absorbers that can be used.
sir can you please shortcut me through that page if you don't mind
Hi Manu, like venkat sir has mentioned, there are several threads that contain the information that you are looking for. The entire "AV Enhancers & Room Acoustics" section has a wealth of information and gives you an idea of how to treat your room. I have seen what you have done in your HT Room and must appreciate your innovative-ness in the way you have used household foam and bolsters for your treatment.
I am pointing you to a few that helped me:
For some DIY:
Nice post by Venkat Sir which explains DIY tips for locating the reflection points and DIY treatment:
There are several other threads on some international online forums. The more you read, the more you learn and sometimes more you get confused. I got stuck at one stage and Venkat Sir was kind enough to guide me. Do it in phases and treat the issues in a progressive manner an stop when you are satisfied. This way, the sound treatment will not be an over-kill.
All the best!!