Sumitrav, Kindly put fwd ur preferred budget,taste(music/movies),which would help us to decide a suitable sys for you. You can audition various brands at any popular electronic showrooms like e-zone,reliance digital,croma,profx etc depending on the presence of one in your city. You can take your own collection of movies,audio etc so that you can audition it,if not the dealer will have his own collection any ways,sit back relax and try to get a feel of the audio quality,the staging,the way the sound pans between the front and the back speakers,the way the amplifier handles the ups and the lows,like the high,mid and the LFE etc. Then if a brand falls under your budget and u feel its good,then thats the one u ought to buy. Coz the most important thing is the personal satisfaction which another person cannot force and impart that in you.
So once u are in to any electronics showrooms,u can look out for brands like onkyo,yamaha,JBL/HK and so on,these brands sell HT packages which wont be that hard on your wallets and at the same time,they are not that great when it comes to pure music and things like that. The other way and the best way of getting a kick ass HT is to assemble different brands,just like u would to build a home PC. You would go for a specific brand for the Amp,a specific brand for the speakers and so and this would cost you more than that buying a HT package but will be good for all your listening pleasure.
So to conclude,let us know after you audition some brands and post the experience and do specify the model names so that the audiophiles here can guide you well.
All the best
Vj