The most popular place for jalebis is in Dariba Kalan (Chandni chowk) which is Old famous Jalebi wala (almost 130 years old) Another is Senor Dhan Singh in Yusuf Sarai Market. It has got really juicy jalebis. You can also try the iconic Mawa Jalebi at Sultan Ji at Matia Mahal Bazar, Jama masjid