|Died||30 October 1770|
||Nawab of Najibabad|
|Battles/wars||Mughal-Maratha Wars, Third Battle of Panipat|
Najib ad-Dawlah (Pashto: نجيب الدوله), also known as Najib Khan Yousafzai (Pashto: نجيب خان), was a Rohilla Yousafzai Pashtun who earlier served as a Mughal serviceman but later deserted the cause of the Mughals and joined Ahmed Shah Abdali in 1757 in his attack on Delhi. He was also a tribal chief in 18th century Rohilkhand, who in the 1740s founded the city of Najibabad in Bijnor district, India.
He began his career in 1743 as an immigrant from village Maneri, District Swabi Khyber Pakhtunkhwa as a soldier. He was at first an employee of Imad ul mulk. He deserted the cause of the Mughals and joined Ahmed Shah Abdali in 1757 in his attack on Delhi. He was then appointed as Mir Bakshi of the Mughal emperor by Abdali. Later in his career he was known as Najib ad-Dawlah, Amir al-Umra, Shuja ad-Dawlah. From 1757 to 1770 he was governor of Saharanpur, ruling over Dehradun. Many architectural relics of the period of Rohilla he oversaw remain in Najibabad, which he founded at the height of his career as a Mughal minister.
Najib Khan belonged to the UmarKhel section of Mandanh Yousafzais. He migrated from village Maneri, district Swabi, now Khyber Pakhtunkhwa Pakistan in 1739 to join his uncle Bisharat Khan, who had settled with his families of Pakhtuns at Bisharatnagar, near Rampur. In 1749, Ali Mohammed, who had captured most of Rohilkhand by 1740, gave Najib Khan a northern portion, where he established the present day city of Najibabad, a state of Najibabad independent from other Rohilla tribes, and received the title, ‘Najib ad-Dawlah’.
Imad-ul-Mulkh appointed Najib ad- Dawlah as the governor of Saharanpur. In 1757, Najib ad-Dawlah, who was then the governor of Saharanpur under Mughal Empire, invaded the city of Dehradun, with his army of Rohillas, and ruled the area for the next decade. His rule was known for its administration, and development of land resources, leading to widespread development and prosperity in the area, with emphasis on agriculture and irrigation. Many mango groves created during the area still exist today. Though after his death in 1770, the area again fell into the hands of warring sides of Rajputs, Gujjars, Sikhs and Gurkhas, who ruled the region, leading to its downfall 
Battle of Delhi, 1759
Ahmad Shah Abdali's invasion of 1759 left Najib in effective control of Delhi who was appointed to the post of 'Mir Bakshi'. He had become the de facto ruler of Delhi, while the Mughal emperor was left with no actual power. His forces had to clash with the advancing Marathas in Delhi in the Siege of Delhi, 1757. Delhi was captured by Marathas and he was allowed safe exit from Delhi. 
Third Battle of Panipat
In the Third battle of Panipat, during the Maratha Conquests, he allied himself with the Durranis led by Ahmad Shah Durrani (also known as Ahmad Shah Abdali, against the Marathas. Najib Khan was clever enough to understand changed ground realities after third battle of Panipat. His brilliant political acumen was used by Ahmed Shah Abdali to isolate Marathas & preventing them from getting even single ally during their conflict with Durrani's power. His opposition to signing of treaty, with Marathas was the main cause of battle being fought at Panipat. He not only provided, Ahmed Shah Abdali, with 40,000 Rohilla troops but also 70 guns to the combined forces. He also convinced Shuja-ud-Daula, the Nawab of Oudh, to join Ahmad Shah Abdali's forces against the Marathas. In this battle, the Maratha's were defeated and as a consequence Rohilla Pakhtuns increased in power. However, the Marathas recovered in a short duration of 10 years and under Mahadji Schinde recaptured Delhi in 1771, reinstalling the weakened Mughal emperor Shah Alam II to the throne, under Maratha suzerainty.
After the war he was made Mir Bakshi of Mughal emperor. He had to become ruler of Delhi state with empty treasury & territory confining to boundaries of Delhi city.
Najib Khan was a Pashtun soldier of fortune; he attained the hand of the daughter of Dunde Khan, one of the chieftains of the Rohilkhand Pathans. Rewarded by this ruler with the charge of a district, now Bijnor, in the North-west corner of Rohilkhand, he had joined the cause of Safdarjung, when that minister occupied the country; but on the latter's disgrace had borne a part in the campaigns of Ghazi-ud-din. When the Vizier first conceived the project of attacking the government, he sent Najib in the command of a Mughal detachment to occupy the country, about Saharanpur, then known as the Bawani Mahal, which had formed the jagir of the Ex-Vazir Khan Khanan.
This territory thus became in its turn separated from the Empire, and continued for two generations in the family of Najib. He ruled the dwindled Empire for nine years, and died a peaceful death, leaving his charge in an improved and strengthened condition, ready for its lawful monarch.
Administrator of Delhi
As the Administrator of Delhi and the imperial heartlands including Agra, Najib ad-Dawlah, was clearly unsuccessful in halting the Jat peasant uprisings led by Raja Suraj Mal. During one massive assault, the Jats and their leaders overran the Mughal garrison at Agra they plundered the city and looted the two great silver doors to the entrance of the famous Taj Mahal were looted and melted down by Raja Suraj Mal in 1764.
Succeeded by Zabita
Destruction of his tomb by the Marathas
His son Zabita Khan was defeated by the Marathas, led by Mahadji Sindhia in 1772 and the fort of Pathargarh was completely looted by the Marathas in the form of horses, elephants, guns and other valuable things, Marathas also destroyed his grave, scattering the bones all around.
A few years later, in the subsequent Rohilla War, the Rohillas were attacked by Awadh with help from British East India Company forces. When Hafiz Rahmat Khan was killed, in April 1774, they were defeated, and Rohilkhand was plundered; and later, the Rohilla power east of the Ganges was ended, and the final treaty by which the territory was incorporated in Awadh was concluded at Lal Dhang. The District was ceded to the British by the Nawab of Awadh, Saadat Ali Khan II in 1801.
- Najib-ud-Daula at Dehli The Fall of the Moghul Empire of Hindustan, by H. G. Keene. 1887, Part II, Chapter II, 1764.
- The Fall of the Mughal Empire by Jadunath Sarkar
- Najib Khan (Najib-ud-Daula), a brilliant Yousafzai
- Baloch proteges of Najib Khan Yousafzai
- History of Etawah Etawah Official website.
- Najibabad Archived 24 July 2008 at the Wayback Machine. This article incorporates text from a publication now in the public domain: Chisholm, Hugh, ed. (1911). "article name needed". Encyclopædia Britannica (11th ed.). Cambridge University Press..
- History of Bijnor District The Imperial Gazetteer of India, 1909, v. 8, p. 194-195.
- Third Battle of Panipat by Abhas Verma ISBN 9788180903397 Bharatiya Kala Prakashan
- History of Dehra Dun The Imperial Gazetteer of India, 1909, v. 11, p. 213.
- Advanced Study in the History of Modern India 1707-1813
- Najibabad Tehsil & Town The Imperial Gazetteer of India, 1909, v. 18, p. 334.
- History of Modern India, 1707 A. D. to 2000 A. D
- Rule of Shah Alam, 1759-1806 The Imperial Gazetteer of India, 1909, v. 2, p. 411.