Qutb-ud-Din Aybak also is said to have destroyed nearly a thousand temples, and then raised mosques on their foundations. The same author states that he built the Jami Masjid, Delhi, and adorned it with the stones and gold obtained from the temples which had been demolished by elephants, and covered it with inscriptions (from the Quran) containing the divine commands. We have further evidence of this harrowing process having been systematically employed from the inscription extant over the eastern gateway of this same mosque at Delhi, which relates that the materials of 27 idol temples were used in its construction.

Kutbn-d din built the Jami Masjid at De1hi, and “adorned it with the stones and gold obtained from the temples which had been demolished by elephants,” and covered it with “inscriptions in Toghra, containing the divine commands.”

The congregational mosque at Delhi named, purposefully, as the Masjid Quwwatul Islam (Might of Islam), was commenced by Aibak in 592/1195 within two years of its conquest. It was built with materials and gold obtained by destroying 27 Hindu and Jain temples in Delhi and its neighbourhood. A Persian inscription in the mosque testifies to this. The mosque at Ajmer erected by Qutbuddin Aibak soon after its occupation and known as the Arhai din ka Jhonpra, was also built from materials obtained from demolished temples. The Qutb Minar, planned and commenced by Aibak sometime in or before 1199 and completed by Iltutmish, was also constructed with similar materials, “the sculptured figures on the stones being either defaced or concealed by turning them upside down.” “In this improvisation,” rightly observes Habibullah, “was symbolised the whole Mamluk history”.

He then marched and encamped under the fort of Delhi... The city and its vicinity were freed from idols and idols-worship, and in the sanctuaries of the images of the Gods, mosques were raised by the worshippers of one God.'...
'Kutbu-d din built the Jami' Masjid at Delhi, and adorned it with stones and gold obtained from the temples which had been demolished by elephants, and covered it with inscriptions in Toghra, containing the divine commands.

He got the temples demolished and their materials used in the construction of a Jãmi' Masjid. He appointed there a qãzi, a muftî, a muhtasib, a khatîb and a mu'zzin and established order in that place…

Throughout the Muslim rule destruction of Hindu shrines and construction of mosques and other building from their materials and at their very sites went on as a normal practice. From the Quwwal-ul-Islam mosque in Delhi built out of twenty-seven Hindu and Jain temples in the twelfth century to the Taj-ul-Masajid built from hundreds of Hindu and Jain temples at Bhopal in the eighteenth century, the story is the same everywhere.

The demolition of temples was taking place since the beginning of Aurangzeb’s reign, nay, from his Viceroy’s days, when he had demolished the Somanâtha and Chintâmani temples in Gujarat. In 1661 when the King of Kuch Bihar was defeated by Mir Jumla, Aurangzeb’s Governor of Bengal, the principal temple of the capital of Kuch Bihar was demolished and a mosque was built thereon. The name of the capital was changed to Alamgir-nagar. In 1661-62 A.D. Abdun Nabi Khan, Aurangzeb’s Faujdar at Mathura, built a Jama Masjid in the heart of the city on the site of a mandir which was different from the famous Keshav Rai’s temple. It seems that after the execution of Dara Shukoh on 30th August, 1659 there was a jubilation in the conservative Muslim camp because he was executed for apostasy by the victorious Emperor Aurangzeb. Once Aurangzeb was in the saddle, his foster brother Fedai Khan, who was the Governor of Ayodhyâ, demolished all temples there at the Emperor’s command and built mosques at those places as marks of the triumph of the ‘true faith’ over the infidelity.

So the temples were attacked “all along the way” as the armies of Islam advanced; they were “robbed of their sculptural wealth”, “pulled down”, “laid waste”, “burnt with naptha”, “trodden under horse’s hoofs”, and “destroyed from their very foundations”, till “not a trace of them remained”. Mahmûd of Ghazni robbed and burnt down 1,000 temples at Mathura, and 10,000 in and around Kanauj. One of his successors, Ibrãhîm, demolished 1,000 temples each in Hindustan (Ganga-Yamuna Doab) and Malwa. Muhammad Ghûrî destroyed another 1,000 at Varanasi. Qutbu’d-Dîn Aibak employed elephants for pulling down 1,000 temples in Delhi. “Alî I ‘Ãdil Shãh of Bijapur destroyed 200 to 300 temples in Karnataka. A sufi, Qãyim Shãh, destroyed 12 temples at Tiruchirapalli. Such exact or approximate counts, however, are available only in a few cases. Most of the time we are informed that “many strong temples which would have remained unshaken even by the trumpets blown on the Day of Judgment, were levelled with the ground when swept by the wind of Islãm”. (also quoted in Ibn Warraq, Defending the West)

The Jum’a Masjid at Irach (in Bundelkhand) is assigned to Aurangzeb’s reign. It is said to be built of materials taken from a Hindu temple. While passing through Udaipur in Bundelkhand (about 1681) Aurangzeb is said to have ordered the Saiva temple there to be demolished. The orders were however modified and the temple was converted into a mosque. The temples at Gayaspur near Bhilsa and the temple of Khaundai Rao in Gujarat were also destroyed.

Furthermore, we are instructed, when we do come across instances of temple destruction, as in the case of Aurangzeb, we have to be circumspect in inferring what has happened and why.... the early monuments – like the Quwwat-ul-Islam mosque in Delhi – had to be built in ‘great haste’, we are instructed...Proclamation of political power, alone! And what about the religion which insists that religious faith is all, that the political cannot be separated from the religious? And the name: the Quwwat-ul-Islam mosque, the Might of Islam mosque? Of course, that must be taken to be mere genuflection! And notice: ‘available materials were assembled and incorporated’, they ‘clearly came from Hindu sources’ – may be the materials were just lying about; may be the temples had crumbled on their own earlier; may be the Hindus voluntarily broke their temples and donated the materials? No? After all, there is no proof they didn’t! And so, the word ‘plundered’ is repeatedly put within quotation marks!
In fact, there is more. The use of such materials – from Hindu temples – for constructing Islamic mosques is part of ‘a process of architectural definition and accommodation by local workmen essential to the further development of a South Asian architecture for Islamic use’. The primary responsibility thus becomes that of those ‘local workmen’ and their ‘accommodation’. Hence, features in the Qutb complex come to ‘demonstrate a creative response by architects and carvers to a new programme’. A mosque that has clearly used materials, including pillars, from Hindu temples, in which undeniably ‘in the fabric of the central dome, a lintel carved with Hindu deities has been turned around so that its images face into the rubble wall’ comes ‘not to fix the rule’. ‘Rather, it stands in contrast to the rapid exploration of collaborative and creative possibilities – architectural, decorative, and synthetic – found in less fortified contexts.’ Conclusions to the contrary have been ‘misevaluations’. We are making the error of ‘seeing salvaged pieces’ – what a good word that, ‘salvaged ’: the pieces were not obtained by breaking down temples; they were lying as rubble and would inevitably have disintegrated with the passage of time; instead they were ‘salvaged ’, and given the honour of becoming part of new, pious buildings – ‘seeing salvaged pieces where healthy collaborative creativity was producing new forms’.

The first thing the Muslim Sultanate of Delhi started on was construction of impressive buildings. The first sultan Qutbuddin Aibak had to establish Muslim power in India and to raise buildings "as quickly as possible, so that no time might be lost in making an impression on their newly-conquered subjects". Architecture was considered as the visual symbol of Muslim political power. It denoted victory with authority. The first two buildings of the early period in Delhi are the Qutb Minar and the congregational mosque named purposefully as the Quwwat-ul-Islam (might of Islam) Masjid. This mosque was commenced by Aibak in 592/1195. It was built with materials and gold obtained by destroying 27 Hindu and Jain temples in Delhi and its neighborhood. A Persian inscription in the mosque testifies to this. The Qutb Minar, planned and commenced by Aibak sometime in or before 1199 and completed by Iltutmish, was also constructed with similar materials, "the sculptured figures on the stones being either defaced or concealed by turning them upside down". A century and a quarter later Ibn Battutah describes the congregational mosque and the Qutb Minar. "About the latter he says that its staircase is so wide that elephants can go up there." About the former his observations are interesting. "Near the eastern gate of the mosque their lie two very big idols of copper connected together by stones. Every one who comes in and goes out of the mosque treads over them. On the site of this mosque was a bud khana, that is an idol house. After the conquest of Delhi it was turned into a mosque."

Thus, it is gathered from a contemporary source that no sooner had Aurangzeb ascended the throne than he started harassing the Hindus by imposing taxes and demolishing temples. It is corroborated by his iconoclastic activities in 1661 and 1662 A.D. In 1661 the famous temple of Kuch Bihar was razed to ground and in its place a mosque was built. In 1661-62 Abdul Nabi, faujdar of Mathura, destroyed a Hindu temple and constructed a mosque on its site. Therefore, there should be no surprize that Fedai Khan demolished the three temples at Ayodhyā in 1660 A.D.

The bigot by whom the temples were destroyed, is said to have erected mosques on the situations of the most remarkable temples; but the mosque at Ayodhya... is ascertained by an inscription on its walls... to have been built by Babur (...) The only thing except these two figures and the bricks, that could with probability be traced to the ancient city, are some pillars in the mosque built by Babur, These are of black stone, and of an order which I have seen nowhere else, and which will be understood from the accompanying drawing. That they have been taken from a Hindu building, is evident, from the traces of images being observable on some of their bases; although the images have been cut off to satisfy the conscience of the bigot.

Hasan Nizami writes that after the suppression of a Hindu revolt at Kol (Aligarh) in 1193 AD, Aibak raised “three bastions as high as heaven with their heads, and their carcases became food for beasts of prey. The tract was freed from idols and idol-worship and the foundations of infidelism were destroyed.” In 1194 AD Aibak destroyed 27 Hindu temples at Delhi and built the Quwwat-ul-Islãm mosque with their debris. According to Nizami, Aibak “adorned it with the stones and gold obtained from the temples which had been demolished by elephants”. In 1195 AD the Mher tribe of Ajmer rose in revolt, and the Chaulukyas of Gujarat came to their assistance. Aibak had to invite re-inforcements from Ghazni before he could meet the challenge. In 1196 AD he advanced against Anahilwar Patan, the capital of Gujarat. Nizami writes that after Raja Karan was defeated and forced to flee, “fifty thousand infidels were despatched to hell by the sword” and “more than twenty thousand slaves, and cattle beyond all calculation fell into the hands of the victors”. The city was sacked, its temples demolished, and its palaces plundered. On his return to Ajmer, Aibak destroyed the Sanskrit College of Visaladeva, and laid the foundations of a mosque which came to be known as ADhãî Din kã JhoMpaDã. Conquest of Kalinjar in 1202 AD was Aibak’s crowning achievement. Nizami concludes: “The temples were converted into mosques… Fifty thousand men came under the collar of slavery and the plain became black as pitch with Hindus.”