Having lived in New Delhi for over 23 years, this place has a special place in my head. The city caters to almost all sorts of interests! You want to party? You can! You want to be touristy and visit some really nice monuments? You can! You want to shop -- high luxury brands to super cheap clothes? You got it!
Not only this. This city harbors some of the best eating places - street food to exotic cuisines, you can eat all!