GURDWARA SHAHIDGANJ BABA GURBAKHSH SINGH, a small shrine standing in a narrow bazar behind the Akal Bunga, commemorates the saga of heroism of Baba Gurbakhsh Singh Nihang and his twenty-nine comrades who faced a Durrani horde in December 1764 and fell to the last man fighting in defence of the Harimandar.
ZAIN KHAN (d. 1764), an Afghan, was appointed governor of Sirhind in March 1761 by Ahmad Shah Durrani. Earlier he had acted as Faujdar of Char Mahal the four districts of Sialkot, Gujrat, Pasrur and Aurarigabad. This was from 1759 when Karim Dad Khan was appointed governor of the Punjab by the Afghan invader. For his relentless campaign against the Sikhs and for his part in die Vadda Ghallughara ( 5 February 1762), or Great Carnage, at the village of Kup Rahira near Malerkotia, Zain Khan had become a special target of their vengeance. Within four months of the Ghallughara they attacked Sirhind with a strong force, inflicting upon him a severe defeat and laying him under tribute.