"Be patient, Tarun. Let me finish the whole story," said his grandfather. "All right" said Tarun. His grandfather continued with the story.

"Prince Khurram was later known as Shah Jahan. He became the emperor in the year 1628. Arjumand Banu Begum was later renamed as Mumtaz Mahal."

"But what does the name Mumtaz Mahal mean?" asked Tarun. "It means the brightest crown of the world," answered his grandfather.

Then he continued with his tale, "When Mumtaz was on her deathbed, Shah Jahan promised her that he would not marry again. He also promised her that he would build the most beautiful mausoleum over her grave.

"What is a mausoleum, grandfather?" asked Tarun in surprise. "Oh! A mausoleum is a building built to house the dead," said grandfather.