facebook app install ads question

Hi , i am new to this awesome forum. Not sure if i can place a question here.
My question is regarding facebook app install ads.
I tried a small budget out for a couple of days but for some reason i only get clicks and no installs. Clicks are around 2-3c each and country i targeted is India.
My question is: Is it possible to only pay for installs with facebook? If not how can i get more downloads. I received none. Hope someone can shed a light on this subject

Also are there other networks where i can pay for app installs below 10c/install?
thank you