This question already has an answer here:
I am lecturer in a university. My university uses free Gmail service. I had changed my email ID and the older one would be closed after a few months.
I don't see Accounts and Import tab, I just see Accounts tab in which no option is mentioned for importing emails. I tried the method with creating a filter for forwarding, but that too, doesn't work any more in Gmail.
Is there any other method than above for transferring emails from my older account to newer account?