Short answers, pulled from the story.
Bibi Ka Maqbara is a Mughal-era tomb located in Aurangabad, in the Indian state of Maharashtra. It was commissioned in 1660 and serves as the mausoleum of Dilras Banu Begum, the wife of the emperor Aurangzeb. It is the principal monument of Aurangabad and is maintained by the Archaeological Survey of India.
Bibi Ka Maqbara is called the Taj of the Deccan because it bears a striking resemblance to the Taj Mahal in Agra. Both are Mughal mausoleums built for empresses who died in childbirth, and the architect of Bibi Ka Maqbara, Ata-ullah, was the son of Ustad Ahmad Lahauri, the principal designer of the Taj Mahal.
Bibi Ka Maqbara was commissioned in 1660 by Prince Azam Shah, son of the Mughal emperor Aurangzeb, in memory of his mother Dilras Banu Begum. It was designed by Ata-ullah as architect and built by Hanspat Rai as engineer, a fact recorded in an inscription on the main entrance door.
According to the Tarikh Namah of Ghulam Mustafa, the construction of Bibi Ka Maqbara cost Rs. 668,203 and seven annas. Aurangzeb had allocated Rs. 700,000 for the project, and the strict budget meant marble was used only up to the dado level, with basaltic trap stone making up the walls above.
Dilras Banu Begum was a princess of the Safavid dynasty of Iran and the daughter of the viceroy of Gujarat. She married Prince Muhi-ud-din, later known as Aurangzeb, on the 8th of May 1637 in Agra. She died on the 8th of October 1657, possibly from puerperal fever, just one month after giving birth to her fifth child.
Bibi Ka Maqbara stands within a charbagh formal garden inside an enclosure measuring approximately 458 metres north to south and 275 metres east to west. The hexagonal mausoleum sits on a high square platform with four corner minarets. Marble covers the structure up to the dado level, with basaltic trap above and a marble dome at the top.