No this didn't help me.
this is not http / https issue.
At first my domain's subdomain was created using my godaddy hosting account.
My hosting account got expired. So I was not able to access the forum.
Then i created the same subdomain using dns in domain manager (without hosting account) and paired it with a new blogger site.
That too is not working. This is the problem.
If the redirect from
http://x.2334454.n4.nabble.com/ to
http://mahabharathamdiscussion.arasan.info/ gets deactivated, I would be able to access my forum directly. Then I would be able to embed the forum in my new page.
Is there any way for this?