Lala Lajpath Rai along with Madan Mohan Malavya founded the Nationalist Party
- Began after the death of Ranjit Singh in 1839.
- First war (1845-46). Sikhs were defeated in all the four battles at Mudki, Feroz Shah, Aliwal and Sobraon. Treaty of Lahore ended the war. Sir Henry Lawerence became the first resident.
- Secon war (1948-49) Dalhausie annexed Punjab. Sir John Lawerence became the first Chief Commissioner of the Punjab.