I think this is because the research grants use the portal (in addition to snail mail) whereas the study grants do not this year. You applied for the study grant, right?
On the DAAD Facebook for Pakistan they explained it. You can read about it here: https://www.facebook.com/daadicpakistan?filter=2.
Dear DAAD, Good day, I just came across the application status update on my daad portal account. It reads "selection made". I would like to know what does that mean. Many thanks.