Worried, he came back home in the evening and asked his grandfather: "Grandfather, can you tell me something about Taj Mahal?"

Tarun's grandfather was a retired teacher. He knew a lot about this beautiful monument. He smiled and said, "Okay. If you promise to be a good boy, I will tell you many things about the Taj."

Tarun promised not to be naughty. So, his grandfather began to tell him the story of the Taj Mahal.