Unification of Nepalनेपाल एकीकरण
From the Gorkha kingdom to a unified Himalayan state
Prithvi Narayan Shah's Gorkha campaign forged dozens of hill principalities into one kingdom, capped by the conquest of the Kathmandu Valley in 1768–69. Expansion ended against the British East India Company: the Anglo-Nepal War (1814–16) and the Treaty of Sugauli fixed borders Nepal largely keeps today.
Kathmandu conquered
25–26 Sep 1768, during Indra Jatra
Valley unified
Bhaktapur falls, November 1769
Anglo-Nepal War
1 Nov 1814 – 4 Mar 1816
Treaty of Sugauli ratified
4 March 1816
What happened
Prithvi Narayan Shah became king of the small hill state of Gorkha in 1743 and spent a quarter-century absorbing its neighbours. On 25–26 September 1768, his forces took Kathmandu while the city celebrated Indra Jatra; Patan followed days later and Bhaktapur in November 1769, completing the conquest of the three Malla kingdoms of the Valley. The capital moved from Gorkha to Kathmandu, and the modern Kingdom of Nepal was born.
His successors pushed the frontiers west to the Sutlej and east into Sikkim, creating, briefly, a Greater Nepal nearly twice today's size. Expansion collided with the British East India Company over the Terai. The Anglo-Nepal War (1 November 1814 – 4 March 1816) ended with the Treaty of Sugauli — signed 2 December 1815 and ratified 4 March 1816 — under which Nepal ceded Sikkim, Kumaon, Garhwal and much of the Terai, accepted a British Resident in Kathmandu, and saw the Mechi and Mahakali rivers fixed as its eastern and western borders.
The treaty also opened the long tradition of Gurkha recruitment into British arms. Nepal preserved its formal independence — it was never colonised — but court politics in Kathmandu grew steadily more violent, culminating in the palace intrigues of the 1840s that brought the Rana family to power.
Key events, 1743–1846
The events of this era from the full political timeline — filter by thread.
1743Monarchy
Prithvi Narayan Shah crowned in Gorkha
The 20-year-old king begins the campaign that will unify Nepal.
25–26 Sep 1768Monarchy
Conquest of Kathmandu
Gorkhali forces take Kathmandu during Indra Jatra; Prithvi Narayan Shah moves his capital — the Kingdom of Nepal is born.
Nov 1769War & conflict
Bhaktapur falls — Valley unified
The last Malla kingdom is absorbed, completing the unification of the Kathmandu Valley.
1 Nov 1814War & conflict
Anglo-Nepal War begins
Border disputes over the Terai ignite war with the British East India Company.
4 Mar 1816Treaties
Treaty of Sugauli ratified
Nepal cedes Sikkim, Kumaon, Garhwal and much of the Terai; Mechi and Mahakali become the borders; Gurkha recruitment begins.
Key figures
Prithvi Narayan Shah
King of Gorkha 1743–75; founder of unified Nepal (reigned from Kathmandu 1768–75)
Bahadur Shah
Regent who drove westward expansion (1785–94)
Bhimsen Thapa
Mukhtiyar (chief minister) 1806–37; led Nepal through the Anglo-Nepal War
Unification of Nepal: frequently asked questions
When did the Unification of Nepal era in Nepal begin and end?+
The Unification of Nepal era in Nepal ran from 1743 to 1846 (1743–1846).
What defined the Unification of Nepal period?+
From the Gorkha kingdom to a unified Himalayan state. Prithvi Narayan Shah's Gorkha campaign forged dozens of hill principalities into one kingdom, capped by the conquest of the Kathmandu Valley in 1768–69. Expansion ended against the British East India Company: the Anglo-Nepal War (1814–16) and the Treaty of Sugauli fixed borders Nepal largely keeps today.
What are the key dates of the Unification of Nepal era?+
Key milestones include — Kathmandu conquered: 25–26 Sep 1768, during Indra Jatra; Valley unified: Bhaktapur falls, November 1769; Anglo-Nepal War: 1 Nov 1814 – 4 Mar 1816; Treaty of Sugauli ratified: 4 March 1816.
What was a key event of the Unification of Nepal era?+
Conquest of Kathmandu (25–26 Sep 1768): Gorkhali forces take Kathmandu during Indra Jatra; Prithvi Narayan Shah moves his capital — the Kingdom of Nepal is born.
Sources & data note
Dates and figures for Unification of Nepal (1743–1846) as documented by the listed sources. Bikram Sambat equivalents are given where customary.