Unification campaign
Main article: Unification of Nepal
Prithvi Narayan Shah unified the major principalities into one country, especially important for business with Tibet after the victory over Nuwakot on October 2 1744, Sindhupal chowk, Kabhrepal chowk, and some kingdoms located to the eastern part of it in 1748 AD. He unified Mahadevpokhari, Pharping, Chitlang, Dharmasthali, Naldrum, Sirancho
wk and Shivapuri during 1745-46. Immediately after the unification of Makawanpur and Simrongad, he unified Bara, Parsa, Rautahat, and Sindhuli Gadhi in 1762. In 1768 he unified Kantipur. Then, relationship of Gorkha kingdom was established with Government of East India Company. The capital from Gorkha to Kathmandu was shifted in 1868 AD. After it Prithvi Narayan Shah died at the age of fifty three in 1775 AD, while he was planning to annex Chaudandi and Vijayapur. Prithvi Narayan Shah was avisionary person. During the reign of Pratap Shah, the son of Prithvi Narayan Shah, three states like Dang, Kapilvastu and Chitwan were merged into Nepal. Similarly, Lamjung, Tanahu, Palpa, Parbat, Upper Nuwakot, Garahu, Stahu, Bhirkot, and Kaski were conquered in1785. Then, Sarlahi, Mahotttari, Dhanusa, Siraha, Saptari, Sunsari, Morang, Jhapa, Sindhuli, and Udayapur were annexed. In 1769 AD, Jajarkot agreed to absorb its kingdom into Gorkha. Pratap Shah died at the age of twenty five in 1777 AD. after the absorption of the Chitwan Valley of Tanahun. Five Valley of Tanahun. Five years after his demise, Koshi, Lamjung, and Tanahun, including Chaubise kingdoms were galvanized into Nepal in 1789 AD after the absorption of all the Baise Kingdoms (twenty-two principalities), located in the western part of the Kali Gandaki. Then, Salyan, Palpa and Mustang were annexed.
[edit] Victory over Kumau & Garhwal
Army of Gorkha got victory over Kumaon in 1790 AD. [2][3] Pradhumna Shah became the ruler of the nation on condition of paying Rs. 5000 yearly tribute. The southern border of Nepal extended up to Allahabad after the absorption of Palpa Kingdom, including the Terai sector of Butwal taken by the king of Palpa from the king of Awadh on lease in 1801. In 1806 AD, the army of Gorkha absorbed all the small kingdoms like Sirmudh, Hindur and Besahar lying across the Gadhwal and the Satalaj River. In this way, Nepal had intention of acquiring the nearest port of Karanchi and the hilly regions such as Nainital, Almoda, Garhwal and Deharadun across the Satlaj River.
[edit] Victory over Sikkim & Darjeeling
Previously Darjeeling formed a part of dominions of the Raja of Sikkim, who had been engaged in an unsuccessful warfare against the Gorkhas. From 1780 the Gorkhas constately made inroads into Sikkim. In the Sino-Nepal treaty, Sikkim lost some of its land to Nepal and by the beginning of 19th century, they had overrun Sikkim as far-eastward as the Teesta and had conquered and annexed the Terai.[4]