Today while I was trying to transfer pictures from computer to my iPhone, I selected the folder I wanted to copy then a message appeared on the screen that
Photos synced to iPhone from other photo libraries or folders will be removed and photos will be synced from this computer. Photos taken from iPhone will not affected.
I entered the option Remove and Sync.
Now the older pictures have been deleted and the new one's have been added.
How can I recover the older picture?