Hi Saba -
According to traditional interpretation, the first man will spend time in prison. His dream shows he will work hard - pressing grapes - and then he must wait a long time - his time in prison - for the fruits of his labor to be realized - the maturation of the wine.
The second prisoner, on the other hand, will be found innocent. In his dream he is walking, and he is feeding birds from a loaf of bread on his head. The birds symbolize freedom - and can not be kept in any location. The second man is a friend of the birds - he is a friend of freedom - and freedom will protect him.
Thanks for visiting us all the way from Karachi, PAKISTAN.