While Aurangzeb has no qualms in employing all means and treachery to ensure his victory
Surprise! The Muslim officers serving under the command of Raja Jaswant singh of Mewar defected to Aurangzeb’s side
1) Sudden conquest and threatening the entire hamlet population to convert or die. Offers include how they would rape their women and children. Peaceful intercourse, of course.
2) Slow Erosion. A Muslim family or two would shift into a Non-muslim village. They would claim peacefulness and peace, and proclaim how they represent Islam and Jihadists don’t. They start living, breeding, populating, and overwhelming the native demographic. Takes a few years.
After gaining a little population, and a little acceptance, they’ll start preaching their faith, pressing the more friendlier families to accept it. Relentless demands for accomodation of faith and practices made. They are granted by the majority. This is stage 2.
Stage 3 is extremely hostile warfare. Picking and picketing on the former Non-muslim adherents of the population. Rape, murder, descretaion, loot, encroachment, compounded with preaching the word of peace. They’ll make your life hell, so that you finally capitulate, or run.
There were many slaves at the end of the 18th century in N.Bihar, N.Bengal, especially towards Assam and the whole of northern frontier. Sale of non Muslim debtors was in common practice. Governors would seize wives and children of those cultivators who could not pay off revenue.