Gmail downloading error during setup

I have 2 Gmail accounts, and em client downloads mails only for just one account, and just empty inbox for other. Strangely, outgoing mails work fine on both the accounts. Any help on how I could set this to work.

Hello Sathish,
are there any error messages concerning the second account?
Can you please check the Menu>Tools>Operations window (all tabs) ?
Are the IMAP settings for both the accounts the same in Menu>Tools>Accounts settings?
Do both folder lists for each account contain ALL MAIL folder?