Well, many knows the name of Karim’s restaurant (Jama Masjid) as famous for Mughal taste. Very few knows about the Jahangeer, which is no way less than Karim’s. It is located in Dariyganj and is both very economical and very tasty.
The only thing that I don’t like about Karim’s or Jahangeer is use of ‘Vanaspati Ghee’ which is very rich in cholestrol and fat, which is very dangerous to health. I try their ‘gravy’ occasionally now. However there are some other things as Biryani and Dry which you can try here even more often or regular.