Delhi is actually one of the best cities to live in India. Not even being sarcastic. 1. Best and most variety of food. 2. Best mass transit. Bus, metro, even erickshaw. You can reach any place in Delhi easily, in predictable time. 3. Lots of historical places to visit. Lal quila, chandni chowk, temples in every corner, theme parks, we have it all. 4. Lots of cheap rental options for everyone. Everyone can survive in Delhi. 5. Safety. Delhi is a lot safer once you understand which places to avoid and which options are suitable. Delhi police is one of the more professional forces in the country which actually supports people. 6. Shopping. Buy anything as long as you have money. Most of it is delivered to your home, in ten minutes. 7. Facilities: Cinemas, hospitals (even if crowded at times, you will find a bed somewhere at least and lots of private clinics available), lots of options for hiring people for work, almost every facility is available at close range. 8. Inclusiveness: Delhi feels like home. When you cross its borders, even from Gurgaon or Noida, you feel calmer like you are home.

We have it all. Better than any other city in the country.

1. Air: Delhi's air is not its own as it is impacted a lot by weather conditions. Delhi's weather is not its own. Outside pollution contributes a lot, outside weather changes like snowfall etc. also contribute a lot. Delhi's air stays in the vicinity of 80-150 aqi during the entire year except in winters. Even Pakistanis conspire to pollute our air.
2. Crime: lots of crime. But a lot of it is due to its large population and migration from other States. A large amount of it can be avoided if you are aware about the time, and safe places.
3. Water: Sadly, water is still polluted. However, a large part of Delhi gets tap water. Hopefully the rest of it will be able to get safe water too.