Will Durant on Conversion of non-Islamic places of worship into mosques

“Aurangzeb cared nothing for art, destroyed its "heathen" monuments with coarse bigotry, and fought, through a reign of half a century, to eradicate from India almost all religions but his own. He issued orders to the provincial governors, and to his other subordinates, to raze to the ground all the temples of either Hindus or Christians, to smash every idol, and to close every Hindu school. In one year ( 1679-80) sixty-six temples were broken to pieces in Amber alone, sixty-three at Chitor, one hundred and twenty-three at Udaipur; and over the site of a Benares temple especially sacred to the Hindus he built, in deliberate insult, a Mohammedan mosque.”

“We shall never be able to do justice to Indian art, for ignorance and fanaticism have destroyed its greatest achievements, and have half ruined the rest. At Elephanta the Portuguese certified their piety by smashing statuary and bas-reliefs in unrestrained barbarity; and almost everywhere in the north the Moslems brought to the ground those triumphs of Indian architecture, of the fifth and sixth centuries, which tradition ranks as far superior to the later works that arouse our wonder and admiration today. The Moslems decapitated statues, and tore them limb from limb; they appropriated for their mosques, and in great measure imitated, the graceful pillars of the Jain temples. Time and fanaticism joined in the destruction, for the orthodox Hindus abandoned and neglected temples that had been profaned by the touch of alien hands.”