what does "Khulaa Khat" [open letter] mean?

[KKF]

Re: what does “Khulaa Khat” [open letter] mean?

@UZ

waisay yeh bata doon ke naama khulaa kaa matlab hai dher saary paisay

hahaha…yeh Khat hai ‘beemah’ nahiiN beemah kaa to pataa hai na?