Alauddin had 50,000 slaves some of whom worn mere boys,* and surely many captured during wax. Firoz Tughlaq had issued an order that whichever places… - K. S. Lal

During the lime of Qutbuddin Aibak a large number of places were attacked and prisoners captured than for which actual figures, given above, are available. Figures of any conversions during campaigns to Kanauj, Ranaras (where the Muslims occupied “a thousand” temples), sfi Ajmer (attacked thrice), Gujarat, Havana and Gwalior, and the campaigns carried out rigid up to Bengal arc not available. (107)

In 1000 Muslim numbers in India were microscopic. In 1200 they were perhaps about three to four hundred thousand. By 1400 their number had risen probably to 3.2 million and they formed about 1.85 percent of the total population. In 1600 they were probably 15 million. And from the 1:9 to 1:10 Muslim-Hindu ratio in 1600 the proportion of Muslims to Hindus had gone up to about 1:7 by the year 1800...Thus at about the middle of the ninteenth century, the Muslim-Hindu ratio stood approximately at 1:6.... By the end of the nineteenth century, the ratio had changed to 1:5, and Stanely Lanepoole, whose Medieval India was first published in 1903, rightly observes: “The population of India in the present day is over three hundred millions, and every sixth man is a Muslim.”

Indigenous converts added to the numerical strength of foreign Muslims. How quickly their numbers swelled may be inferred from the fact that when, early in the fourteenth century, Malik Kafur marched into Maabar (Malabar), about 20,000 Musalmans who had settled in South India for long and were fighting on the side of the Hindus, deserted to the imperialists and were spared.