All I know is that I am adopted. And I am very sad as I was left in front of a house or main road... I wish to find my real parents. How to??

Have you asked your family for every little detail? Are they the ones who found you, or did they adopt you from an orphanage?

If you really were left that way, you have an almost zero chance of finding your mother, much less a father as well. You may have been born to a young unmarried woman, or one who was raped, or who died in childbirth, or (less likely) to a couple who couldn't afford another child.

If the story isn't true about how you were found, that is your only hope. If you can get your family to show you any adoption papers, that would be a start. Another hope is to advertise in papers where you were found and when, but that is a one in a million chance too.

Many were just girls when they got pregnant, and they later marry, and don't want the past to be known. Many adoptees who find their mothers get a door slammed in their face, or find that she is not the wonderful loving person they hoped for, even if they reunite for a while.

How old are you?