3. Delhi officially the National Capital Territory of Delhi (NCT), is the largest metropolis by area and the second-largest metropolis by population in India. It is the eighth largest metropolis in the world by population with 16.7 million inhabitants in the Territory at the 2011 Census. There are nearly 22.2 million residents in the greater National Capital Region urban area (which also includes the cities Noida, Greater Noida, Ghaziabad, Gurgaon and Faridabad along with other smaller nearby towns). The name Delhi is often also used to include urban areas near the NCT, as well as to refer to New Delhi, the capital of India, which lies within the metropolis. Although technically a federally administered union territory, the political administration of the NCT of Delhi today more closely resembles that of a state of India with its own legislature, high court and an executive council of ministers headed by a Chief Minister.

4. Being one of the most historic capitals in the world, Delhi has many tourist sites. This is a list of Delhi's tourist sites. In Old Delhi, there are attractions like mosques, forts and other monuments that represent India's history. The important places in Old Delhi include the majestic Red Fort. New Delhi, on the other hand, is a modern city designed by Edwin Lutyens and Herbert Baker. New Delhi houses many government buildings and embassies, apart from places of historical interest. The Qutub Minar, Red Fort and Humayun's Tomb are listed as UNESCO World Heritage Sites.

5. India Gate and Rajpath Rashtrapati Bhawan Connaught Place Humayun's Tomb Purana Quila Red Fort Chandni Chowk Qutub Minar Akshardham Temple Laxminarayan Temple Gurdwara Bangla Sahib Jama Masjid Lotus Temple Jantar Mantar

6. Delhi Metro Low Floor Buses Auto Rickshaws

7. Situated along the ceremonial Rajpath avenue (meaning King's Way) in New Delhi, India Gate is a memorial raised in honour of the Indian soldiers who died during the Afghan wars and World War I. The names of the soldiers who died in these wars are inscribed on the walls. Thecenotaph (or shrine) in the middle is constructed with black marble and depicts a rifle placed on its barrel, crested by a soldier's helmet. Each face of the cenotaph has inscribed in gold the words Amar Jawan. The green lawns at India Gate are a popular evening and holiday rendezvous for young and old alike.

8. Built with a mix of Western and Indian styles, Rashtrapati Bhavan was originally built for the Governor General of India. Inaugurated in 1931 as the Viceregal Lodge, the name was changed in 1959 after India became a republic. Now it is the Presidential Palace of India.

9. Connaught Place is one of the largest commercial areas in Delhi, India. It's also known as C.P. A heritage building and a nice place to shop, with a lot of variety - both branded and privately owned businesses - and lots of restaurants for every taste and budget. Just be careful of unscrupulous men trying to take you to specific places, they are touts and earn huge commissions, as a result you'll end-up spending much much more.

10. Humayun's Tomb was built for Humayun's widow, Hamida Banu Begum. Designed by a Persian architect named Mirak Mirza Ghiyas, the structure was begun in 1562 and completed in 1565. The tomb established a standard for all later Mughal monuments, which followed its design, most notably the Taj Mahal.

11. The Purana Quila (Old Fort) is a good example of Mughal military architecture.Built by Pandavas, renovated by Humayun, with later modifications by Sher Shah Suri, the Purana Quila is a monument of bold design, which is strong, straightforward, and every inch a fortress. It is different from the well-planned, carefully decorated, and palatial forts of the later Mughal rulers.

12. The decision for constructing the Red Fort was made in 1639, when Shah Jahan decided to shift his capital from Agra to Delhi. Within eight years, Shahjahanabad was completed with the Red Fort- Qila-i-Mubarak (fortunate citadel) — Delhi's seventh fort — ready in all its magnificence [ to receive the Emperor.

13. Chandni Chowk, a main marketplace in Delhi, keeps alive the city's living legacy of Shahjahanabad. Created by Shah Jahan the builder of Taj Mahal, the old city, with the Red Fort as its focal point and Jama Masjid as the praying centre, has a fascinating market called Chandni Chowk. Legend has it that Shah Jahan planned Chandni Chowk so that his daughter could shop for all that she wanted. The market was divided by canals.

14. The Qutub Minar is located in Mehrauli in South De. It was built by Qutub-ud-din Aibak of the Slave Dynlhiasty, who took possession of Delhi in 1206. It is a fluted red sandstone tower, which tapers up to a height of 72.5 meters and is covered with intricate carvings and verses from the Qur'an. Qutub-ud-din Aibak began constructing this victory tower as a sign of Muslim domination of Delhi and as a minaret for themuezzin to call the faithful to prayer. However, only the first story was completed by Qutub-ud-din.

15. Akshardham Temple it is the largest Hindu temple in the world. It was built in 2005. In the sprawling 100-acre (0.40 km 2 ) land rests an intricately carved monument, high-technology exhibitions, an IMAX theatre, a musical fountain, a food court and gardens.

16. The temple is built in honour of Lakshmi (Hindu goddess of wealth), and her consort Narayana (Vishnu, Preserver in the Trimurti) by B. R. Birla from 1933 and 1939, when it was inaugurated by Mahatma Gandhi. The side temples are dedicated to Shiva, Krishna and Buddha.

17. One of the most prominent and largest Gurdwaras in Delhi, Gurdwara Bangla Sahib is the most visited one in the Delhi. Millions visit this Gurdwara from all over the world and of all religions to offer their prayers at this elegant yet historical Gurdwara in Delhi.

18. The Masjid-i-Jahan Numa, commonly known as Jama Masjid, is the principal mosque of Old Delhi. Commissioned by the Mughal Emperor Shah Jahan and completed in the year 1656, it is one of the largest and best known mosques in India.

19. The Lotus Temple is a Bahá'í House of Worship, situated in South Delhi and shaped like a lotus. It was built by the Bahá'í community.It is said to be keep quite in the temple.

20. The Jantar Mantar consists of 13 architectural astronomy instruments, built by Maharaja Jai Singh II between 2012-2011. It is a UNESCO World Heritage Site. It is located near cp.