Jasrat Khokhar supported Shahi Khan against Ali Shah in the Kashmir Civil War (1419–1420) and obtained significant spoils after his victory in the Battle of Thanna.
Although he was mostly unsuccessful in these campaigns, Jasrat Khokhar managed to expand his control over most of Punjab and Jammu as well as parts of present-day Himachal Pradesh.
[4] He was born to a local chieftain, Shaikha Khokhar in c. 1375, during a time when Delhi Sultanate was in decline due to civil war among members of Tughlaq dynasty.
[4][c] In the late 14th century, Khokhars controlled the territory between Salt Range (Kuh-i-Jud) and Sirmur in Himachal Pradesh, and were usually in a state of conflict with the Delhi sultans as well as neighbouring rulers in Kashmir and Jammu.
Jasrat Khokhar opposed him with a force of 2,000 at river Sutlej between Tulamba and Dipalpur, but was defeated and made captive, later being taken to Samarkand.
Ali Shah defeated Shahi Khan with the help of Bhim Dev, Raja of Jammu and his father-in-law, and expelled him from Kashmir.
When the allied army reached Srinagar, dispute occurred between Shahi Khan and Jasrat as the latter intended to annex Kashmir into his own kingdom.
Ultimately, both reached a friendship treaty according to which Shahi Khan would supply money and men to Jasrat for his conquest of Punjab.
[4] Due to the support Bhim Dev had been providing to the Delhi sultanate, Jasrat invaded Jammu in April 1423 and ravaged the region.
Bhim Dev was killed in a battle and Jasrat married one of his daughters, as well as captured a large amount of wealth and arms from him.
[e] After the invasion of Jammu, Jasrat raised a contingent of Mongol mercenaries and sacked Dipalpur and plundered suburbs of Lahore, after which he returned with bounty to his domains as usual.
However, he was defeated by governor of Lahore Sikander Tohfa at the bank of river Beas near Kangra and retreated to Tilhar, leaving the war spoils back.
[4][20] Later, when the governor of Lahore Allahdad Kaka invaded Jasrat's territories in 1432 to re-gain charge of Jalandhar he was defeated at Bajwara and fled.
[21] After 1436, Jasrat fought battles against the Lodi chief Bahlol Khan, who had re-established himself at Sirhind by bringing all Afghans under his banner.
In return of his support, Bahlol ceded the region between Chenab and Jhelum (Chaj Doab) to Jasrat and agreed to not interfere in his territories.
Jasrat also maintained good relations with the custodians of the Shrine of Baba Farid, with whom Khokhars had a close political alliance.
[4][35] According to the Tareekh-i-Mubarak Shahi of 15th century historian Yahya bin Ahmad Sirhindi, Jasrat aspired to capture the throne of Delhi.
Sirhindi further adds that in spite of repeated failure, his spirit remained high, and he continued to be a thorn in the flesh of Delhi Sultans for many years.