AFGHAN SIKH RELATIONS spanning the years 1748 to 1849 go back to the first invasion of India by Ahmad Shah Durrani, although he must have heard of the Sikhs when in 1739 he accompanied Nadir Shah, the Iranian invader, as a young staff officer. Having occupied Lahore after a minor engagement fought on 11 January 1748 during his first invasion of India, Ahmad Shah advanced towards Sirhind to meet a Mughal army which he was informed was advancing from Delhi to oppose him. On the way he had two slight skirmishes at Sarai Nur Din and at the Vairoval ferry, both in present day Amritsar district, with a Sikh jatha or fighting band under Jassa Singh Ahluvalia.
FATEH KHAN (d. 1818), son of Painda Khan, the Barakzai chief, who overthrew Shah Zaman, the king of Afghanistan (1793-1800), and placed his half-brother Shah Mahmud on the throne of Afghanistan, himself becoming prime minister. Shah Mahmud was dethroned in 1803 and was succeeded by Shah Shuja`. Fateh Khan expelled Shah Shuja` in 1809 and restored Shah Mahmud to sovereignty. Shah Shuja` fell into the hands of`Ata Muhammad Khan. the governor of Kashmir. As Kashmir was the richest province of the kingdom of Afghanistan, Fateh Khan turned his attention towards `Ata Muhammad Khan.
KOHINUR ("Mountain of Light"), the peerless diamond which today lakes the pride of place among the British crown jewels, once belonged to Maharaja Duleep Singh, the last Sikh sovereign of the Punjab. Duleep Singh was made to surrender it to the British after the annexation of the Punjab in 1849. The stone, which weighed 1861/6 carats, was exhibited in London in 1851. In 1852, it was entrusted for recutting to a London firm of jewellers who engaged for this purpose a Dutch from Amsterdam. The cutting enhanced the brilliance of the diamond, but reduced its weight by 80 carats.
TRIPARTITE TREATY (June 1838). As the rumours of Russian infiltration into Persia and Afghanistan spread in the late thirties of the nineteenth century, the Governor General, Lord Auckland, despatched Captain Alexander Burnes to Kabul to make an alliance with Amir Dost Muhammad. The Afghan ruler made Peshawar the price of his cooperation which the British could not afford without going to war with the Sikhs. Auckland had to choose between Dost Muhammad and Ranjit Singh. He chose Ranjit Singh and decided to seek his help in ousting Dost Muhammad and putting Shah Shuja` on the throne of Afghanistan.