Chandni Chowk, established in the 17th century by Shah Jahan's daughter, is one of Delhi's oldest and busiest markets with around 2500 shops, known for its diverse specialties and rich history. It features notable historical sites including the Red Fort, Jama Masjid, and various temples, along with renowned eating spots like Karim's and Paranthe Wali Gali. The market also offers unique shopping experiences, from traditional jewelry to rare books, making it a vital cultural and commercial hub in Old Delhi.