I would like to update on above.
last week I visited ProFX dealer in delhi, got audition of some of the gears and finalize the following
- replaced my Polk TSx 330t with new S-55
- Bought 2no S-15 and 2 no Fxi A4 for surround.
- Initially chose the Elac Sub 10 then after listening at home replaced it with Polk DSW 660wi.
Also got repaired TL-1600 satellites from there for 7.5K
Now the set up seems gre8. Thnx to all for valuable suggestions.