The morning of March 23, 1931, in Lahore Central Jail began like any other day. The only difference was that there was a strong wind in the morning.But when Warden (jail guard) Chatar Singh told all the prisoners to go to their respective cells at four in the afternoon, it seemed a bit strange to the prisoners. He did not disclose the reason.All that came out of his mouth was, 'The order has come from above.' The prisoners were just wondering what had happened, when the jail barber Barkat passed by each cell whispering – 'Tonight, Bhagat Singh, Rajguru, and...