Hi Souvik,
I think John is on the right track, but a question - are you embedding in a table?
If you are` using a table and then placing the css ie in a div etc then you will have this problem of text align not working.
Without seeing your whole code section I cant comment- but this is the problem I had.
You have to fudge or dump either table or div:)
The link I gave earlier expl,ains it and here is another
http://www.nic.fi/~tapio1/Teaching/Taulukot0.php3
sorry about all the links - Im not lecturing - just we cant help a lot without seeing the relevent code - so I offer thm so you may see your problem.
You are up against a quirk of css, tables and div's
yummy :)
Keep well.