As of 2024, Delhi ranks 2nd in terms of population among the largest cities in the world, with an estimated population of ~imately 34 million people. 

Despite its immense population, Delhi is a city worth visiting for its unique blend of history, culture, and natural beauty. While it’s known for its bustling streets and vibrant energy, Delhi also boasts an abundance of green spaces that provide a peaceful escape from the urban hustle. The city is home to numerous parks, gardens, and tree-lined avenues that offer a refreshing contrast to the busy urban environment. Notable green spaces like the Lodhi Gardens, Jahanpanah City Forest, and Sultanpur Bird Sanctuary showcase Delhi's commitment to preserving nature within the metropolis. 

Delhi is home to a remarkable diversity of tree species, with around 250+ varieties of trees found throughout the city. This rich variety includes both native and non-native species, contributing to the city’s lush greenery. Some of the most common and iconic trees in Delhi include: Neem (Azadirachta indica), Peepal (Ficus religiosa), Banyan (Ficus benghalensis), Mango (Mangifera indica), Jamun (Syzygium cumini), Gulmohar (Delonix regia), Jacaranda (Jacaranda mimosifolia), Tamarind (Tamarindus indica) and Mango trees. These green areas not only provide a haven for flora and fauna but also offer visitors a chance to relax, enjoy nature, and experience a different side of this vibrant city.