Bibi Ka Maqbara is believed to have been built between 1668 and 1669 C.E. According to the “Tarikh Namah” of Ghulam Mustafa, the cost of construction of the mausoleum was Rs. 668,203-7 (rupees six lakh, sixty-eight thousand, two hundred three and seven annas) – Aurangzeb allocated only Rs. 700,000 for its construction. An inscription found on the main entrance door mentions that this mausoleum was designed and erected by Ata-ullah, an architect and Hanspat Rai, an engineer respectively. The marble for this mausoleum was brought from mines near Jaipur. According to Tavernier, around three hundred carts laden with marble, drawn by at least 12 oxen, were seen by him during his journey from Surat to Golconda. The mausoleum was intended to rival the Taj Mahal, but the decline in architecture and proportions of the structure (both due to the severe budgetary constraints imposed by Aurangzeb) had resulted in a poor copy of the latter.
Panchakki, known as the water mill. This monument is located in Aurangabad, Maharashtra, displays the scientific thought process put in medieval Indian architecture. It was designed to generate energy via water brought down from a spring on a mountain. The building, attached to the dargah of Baba Shah Musafir a Sufi saint is located in a garden near the Mahmud Darvaza and consist of a mosque, a madrassa, a kacheri, a minister’s house, a sarai and houses for zananas
Most of the buildings in the dargah complex (including Panchakki) were erected by Turktaz Khan, a noble on the staff of Nizam-ul-Mulk Asaf Jah in about 1695 A. D. The oblong reservoir in front of the mosque and fountains were added 20 years later by Jamil Beg Khan. Dating back to the 17th century, this ingenious water mill was designed to use the energy generated by flowing water from a nearby spring to turn the large grinding stones of the flour mill. Shah Mosafar died in Hijri 1110. This watermill was used to grind grain for the pilgrims and disciples of saints as well as for the troops of the garrison.