Just look htru the history, how many temples were demolished and how many innocents were slaughtered near Kashi and Dwaraka, when the Turkish forces Invaded these cities. Any idea how many captured "hindu" Prisoners of war were killed by Akbar (the most secular mughal king)...Any idea how many Hindus converted due to the burden of Jazia on them...Mughals cant convert the rest of the country becuz of many reasons like the Might of Marathas, Sikhs etc., also they couldnt cross Vindhya to reach south India in those days, and when they did it, by that time and Portugese, the French and the English have checked them....