Adi Granth - Each Guru’s bani used to be compiled into separate Pothis (holy books). Guru Arjan Dev Ji decided to compile all the Guru’s Bani into a single text called the Adi Granth. He organized it by Raag. Guru Ji asked Bhai Gurdas Ji, a leading Sikh scholar, to be the scribe. It is estimated to have taken 18 months for Bhai Gurdas Ji to finish this task.

Expanding Amritsar and building Harmandir Sahib - Guru Arjan Dev Ji helped to finish the construction of Amritsar’s Sarovar (step-well with holy water) and oversaw the construction of Harmandir Sahib. The gurdwara has four doors, one in each direction: North, South, East, West. This represents that people from any direction and socioeconomic background can enter the Gurdwara.