What to do with an outstanding demand

I logged in today to the income tax efiling website. Now, it says that i have an outstanding

demand for Rs. 600/- for the year AY 2008. I remember that during that year my returns

was picked up for scruitny and the AO told me to pay an demand of 600/- and he closed the case

once i paid Rs. 600/- At that time - I did not file a revised return. I dont know if this is what they

mean.

Now, what are the options for AY 2008 for me. what is the best way forward.