DSXchange

Dear Experts,

I am very much interested in updating myself with DataStage. I wish to lean about the features of DataStage Versions, about parallel jobs etc.

Can you please suggest me some websites and books which will help me to gain good knowledge of DS?

Regards,

Lavanya

Herewould be a good start

There are no books.
The two main web sites for developers are this one and IBM DeveloperWorks
IBM also have sales information, product announcements, etc.
Other than that, fire up your favourite search engine - DataStage is not a name that will get too many false positives.
You might also like to learn about the other products in the suite; QualityStage, MetaStage, ProfileStage and AuditStage.