Shahjahan, a great patron of architecture, commissioned the city of Shahjahanabad in 1639 C.E. It was completed in the year 1648 which was commemorated in the form of a chronogram written by Mir Yahiya Kashi yielding the date 1058 H. or 1648 C.E. “shud shahjahanabad az shahjahan abad” (shahjahan founded shahjahanabad) Shahjahanabad is still a living city, now known as the ‘purani dilli’, dotted with numerous sites of historical interest.