Some basic facts about Delhi…
Area : 1,483 square kilometers
Position : Latitude 28.38° N, Longitude 77.13° E, Altitude 293 m above sea level 
Population : 1, 38, 50,507 (Females 62, 43,273, Males 76, 07,234)
Density : 9340 Sq. Km. 
Literacy Rate : Total 81.67 % (Females 74.71 %, Males 87.37 %)
Birth Rate : 21.24 per 1000,
Death Rate : 5.81  per 1000,
Infant Mortality : 23.93  per 1000
Per Capita Income : Rs.38864,
Gross Domestic Product : 478 billion INR in year 2005 
Temperature : 45 degree (max), 5 degree (min),
Time Zone: IST (UTC+5:30) 
Languages: Hindi, English, Punjabi & Urdu,
Religion: Hindu, Muslim, Sikh, Christian
Climate : Summers in Delhi are very hot and winters very cold.
The temperature varies from 45 degrees in summers to 4 degrees in winters.
People : People from all over India stay in Delhi, while old Delhi is populated by Muslims.
Economy : Important crops grown are wheat, gram, Bajra and Jowar. Important trading centers in Delhi are fruit and vegetable market, food grain market, fodder market & cloth market.
Festivals : Holi, Diwali, Id, Christmas, Guru Nanak Jayanti, Durga Puja, Dussehra etc.
International Kite lying festival, Garden Tourism Festival and Mango Festival are some of the other festivals also.
Place to Visit : Bangla Sahib Gurudwara /Birla Mandir / Chandni Chowk / Chattarpur Mandir/ Connaught Place/Delhi Zoo/ Dilli Haat/ Doll Museum/ Humayun's Tomb/ India Gate/ Indira Gandhi Memorial/ ISKCON/ Jantar Mantar/ Jama Masjid/ Kairali Ayurvedic Health Resorts/ Lodhi's Tomb/ Mahavir Statue/ Mughal Gardens/ National Gallery of Art/ National Museum/ Nehru Planetarium & Museum/ Nizamuddin Tomb/Parliament House/ Purana Quila/ Qutab Minar/ Rail Museum/ Raj Ghat/ Rashtrapati Bhavan/ Red Fort/ Sacred Heart Cathedral/ Safdarjung's Tomb/ Sis Ganj Gurudwara/Tomb of Ghiyasuddin Tughlaq.