CHAKKI SAHIB GURUDWARA, EMINABAD Janamsakhis also mention Guru Nanak Dev\'s being made a prisoner at the hands of Babar\'s men. He was made to grind corn with a hand-driven millstone (chakki in Punjabi), but his captors were surprised to see that the millstone revolved by itself while the prisoner only poured grist into it. When the miracle was reported to Babar, he himself came the Guru, and after talking to him he set free not only the but all other prisoners too, many of whom became the Guru\'s followers.