Visit www.pnbindia.com, and select netbanking option, if your account in savings account, then select retail login option and login using customer Id and password.
How To Check The Balance In Punjab National Bank Through Internet?
How to check my account statement for punjab national bank, my A/C NO IS 0514000100254974?
You need to fill up a form for internet banking. Bank in response will issue User code and password to you in a sealed envelope and the web site of the Bank will ask you some more information once you go to the web site before internet operation of your account.