North India is a loosely defined region consisting of the northern part of India. The dominant geographical features of North India are the Indus-Gangetic Plain and the Himalayas, which demarcate the region from the Tibetan Plateau and Central Asia. Wikipedia
Area: 1.421 million km²
Largest city: Delhi
Official languages: Hindi; English; Urdu; Punjabi; Kashmiri; Dogri
Other states sometimes included: Bihar; Gujarat; Madhya Pradesh; West Bengal