Jalandhar district is a district in Doaba region of the state of Punjab, India. The district headquarters is the city of Jalandhar. Before the Partition of India, Jalandhar was also the headquarters of the Jalandhar Division, with constituent districts Jalandhar, Hoshiarpur, Ludhiana, Ferozepur and Kangra. The entire Jalandhar Division was awarded to India when Punjab was partitioned. History Classical Jalandhar was the site of the Katoch Rajput kingdom of Jalandhara, also known as Trigartta. The date of its founding is unclear, but its presence is observed by the Chinese pilgrim Xuanzang in the seventh century, and Kalhana records the defeat of Prithvi Chandra Raja of Trigartta by Sankara Varmma of Kashmir towards the end of the ninth century. Medieval Jalandhar became part of the Persianate Ghaznavid Empire during the reign of Ibrahim Shah sometime between 1058 and 1098, and by 1240, it was a fief of the Delhi Sultanate. In 1298, an army led by Ulugh Khan and Zafar Khan defeated in battle, and forced the retreat of invading Mongols of the Chagatai Khanate. The sack and plunder of Delhi by Timur in 1398 gravely weakened the Delhi Sultanate and ushered in a period of lawlessness in the country. In 1416, the governor of Jalandhar, Malik Tughan assassinated the governor of Sirhind, and later rebelled against Khizr Khan, before being defeated. In the following years Jasrath Khokhar led a series of raids across Jalandhar as he challenged the authority of the Sultan. In 1441, Jalandhar came under the authority of Bahlol Lodi who was appointed governor of Lahore province. Lodi made peace with Jasrath, rebelled and in 1450 became sovereign of Delhi. Early modern Mughal When Babur invaded northern India in 1524 he granted the jagir of Jalandhar to Daulat Khan Lodi at whose instigation he had come. The following year Lodi revolted and was defeated by Babur. In 1540, Babur's son Humayun was expelled by Sher Shah Suri and Jalandhar became part of the Sur Empire. On Humayun's return in 1555, Jalandhar was occupied by his general Bairam Khan and later Akbar. Whilst Akbar had moved east to fight Hemu, Sikandar Suri defeated Khizr Khan, governor of Lahore, at Chamiari in the north of the district. On Akbar's return to Jalandhar, Mughal hegemony was re-established. During Akbar's reign, the city of Jalandhar became one of his mint cities. In 1594, the town of Kartarpur was founded by Guru Arjan