"The Tarikh-i-Muhammadi gives a clear idea of the psychology of the rulers in this regard. Its author was a contemporary of Sultan Nasiruddin Mahmud, the son of Firoz Tughlaq. He says that while fighting Rai Subir (Sumer) in the vicinity of Iraj, the Sultan thought: ‘If I will give orders to the army to fight (outright), they will not leave even a trace of the Kafirs in the region, but if I shall advance slowly, then probably these people will agree to embrace Islam.”"