lol..
These are not urdu proverbs but you see them on bus and lorees back. Some of them that I know :
Maa ki duaa Janat ki hawa
Jiss ne maa ka dill dukhaya, ussne rakhsaw chalaya .. 
Rasta millay na millay, speed aik so nabbay (190) … 
Qismat ne aik baar phir dulhan bana diya… 