Northwestern Indian subcontinent in the context of "Uttar Pradesh"

34°30′N 76°30′E / 34.5°N 76.5°E / 34.5; 76.5

Kashmir (/ˈkæʃmɪər/ KASH-meer or /kæʃˈmɪər/ kash-MEER) is the northernmost geographical region of the Indian subcontinent. Until the mid-19th century, the term Kashmir denoted only the Kashmir Valley between the Great Himalayas and the Pir Panjal Range. The term has since also come to encompass a larger area that formerly comprised the princely state of Jammu and Kashmir, and includes the Indian-administered territories of Jammu and Kashmir and Ladakh, the Pakistani-administered territories of Azad Kashmir and Gilgit-Baltistan, and the Chinese-administered territories of Aksai Chin and the Trans-Karakoram Tract.

Indo-Persian culture refers to a cultural synthesis present on the Indian subcontinent. It is characterised by the absorption or integration of Persian aspects into the various cultures of modern-day republics of Bangladesh, India, and Pakistan. The earliest introduction of Persian influence and culture to the subcontinent was by various Muslim Turko-Persian rulers, such as the 11th-century Sultan Mahmud Ghaznavi, rapidly pushed for the heavy Persianization of conquered territories in northwestern Indian subcontinent, where Islamic influence was also firmly established. This socio-cultural synthesis arose steadily through the Delhi Sultanate from the 13th to 16th centuries, and the Mughal Empire from then onwards until the 19th century. Various dynasties of Turkic, Iranian and local Indian origin patronized the Persian language and contributed to the development of a Persian culture in India. The Delhi Sultanate developed their own cultural and political identity which built upon Persian and Indic languages, literature and arts, which formed the basis of an Indo-Muslim civilization.

Persian was the official language of most Muslim dynasties in the Indian subcontinent, such as the Delhi Sultanate, the Kashmir Sultanate, the Bengal Sultanate, the Mughal Empire and their successor states, and the Sikh Empire. It was also the dominant cultured language of poetry and literature. Many of the Sultans and nobility in the Sultanate period were Persianised Turks from Central Asia who spoke Turkic languages as their mother tongues. The Mughals were also culturally Persianised Central Asians (of Turko-Mongol origin on their paternal side), but spoke Chagatai Turkic as their first language at the beginning, before eventually adopting Persian. Persian became the preferred language of the Muslim elite of northern India. Muzaffar Alam, a noted scholar of Mughal and Indo-Persian history, suggests that Persian became the official lingua franca of the Mughal Empire under Akbar for various political and social factors due to its non-sectarian and fluid nature. The influence of these languages led to a vernacular called Hindustani that is the direct ancestor language of today's Hindi–Urdu varieties.

The India–Pakistan border is the international boundary that separates the nations of the Republic of India and the Islamic Republic of Pakistan. At its northern end is the Line of Control, which separates Indian-administered Jammu & Kashmir from Pakistani-administered Kashmir; and at its southern end is Sir Creek, a tidal estuary in the Rann of Kutch between the Indian state of Gujarat and the Pakistani province of Sindh.

Arising from the partition of India in 1947, the border covers the provincial boundaries of Gujarat and Rajasthan with Sindh, and the Radcliffe Line between the partitions of Punjab. It traverses a variety of terrain in the northwestern region of the subcontinent, ranging from major urban areas to inhospitable deserts. Since the beginning of the India–Pakistan conflict shortly after the two countries' conjoined independence, it has been the site of numerous cross-border military standoffs and full-scale wars. The border's total length is 3,323 kilometres (2,065 mi) according to figures given by PBS; it is also ranked as one of the most dangerous international boundaries in the world, based on an article written in Foreign Policy in 2011. During the nighttime, the India–Pakistan border is distinctly visible from outer space due to the 150,000 floodlights installed by India on approximately 50,000 poles.

Kashmir (/ˈkæʃmɪər/ KASH-meer or /kæʃˈmɪər/ kash-MEER) is the northernmost geographical region of the Indian subcontinent. Until the mid-19th century, the term Kashmir denoted only the Kashmir Valley between the Great Himalayas and the Pir Panjal Range. The term has since also come to encompass a larger area that formerly comprised the princely state of Jammu and Kashmir, and includes the Indian-administered territories of Jammu and Kashmir and Ladakh, the Pakistani-administered territories of Azad Kashmir and Gilgit-Baltistan, and the Chinese-administered territories of Aksai Chin and the Trans-Karakoram Tract.

In 1819, the Sikh Empire, under Ranjit Singh, annexed the Kashmir valley. In 1846, after the Sikh defeat in the First Anglo-Sikh War, and upon the purchase of the region from the British under the Treaty of Amritsar, the Raja of Jammu, Gulab Singh, became the new ruler of Jammu and Kashmir. The rule of his descendants, under the paramountcy (or tutelage) of the British Crown, lasted until the Partition of India in 1947, when the former princely state of the British Indian Empire became a disputed territory, now administered by three countries: China, India, and Pakistan.