Hi all,

Thanks for all the hints...It helped me a lot to solve the problem. Looks like it was indeed a problem with weakref and leaks.

From XML::Twig man page

dispose

    Useful only if you don't have Scalar::Util or WeakRef installed.

    Reclaims properly the memory used by an XML::Twig object. As the o
+bject has circular references it never goes out of scope, so if you w
+ant to parse lots of XML documents then the memory leak becomes a pro
+blem. Use $twig->dispose to clear this problem.
[download]

Same dispose method was available with OpenOffice::OOdoc module and problem got solved when started using that.

Thanks a lot monks