I'm sorry, I'm not very familiar with the specific 'ajab prem ki ghazab kahani'. It might be a relatively niche or regional story. You could try looking for it in local libraries or cultural heritage centers.
Maybe it's about a love that blossoms during a journey. They start as strangers, but during the course of traveling together, they discover common interests and feelings, and love gradually grows between them. Along the way, they might also encounter some difficulties like getting lost or running out of money, which further tests their relationship.
One great source is children's literature. For example, the works of Roald Dahl like 'Charlie and the Chocolate Factory' are full of imagination and positive values.
Without any prior knowledge of 'pyar ki ye ek kahani', it's difficult to give a full account. It might be a story set in a particular cultural context, perhaps with themes of family, sacrifice, and of course, love. There could be a hero and a heroine, and their journey through different emotions and situations would form the plot of this story. But again, this is all guesswork without more information.