The Missions of Baba Deep Singh:

Baba Deep Singh Ji had been summoned to Damdama Sahib to work with Bhai Mani Singh Ji preparing the final text of Sri Guru Granth Sahib. Guru Gobind Singh Ji recited the entire Granth Sahib to them while they wrote out the text. After its completion Baba Deep Singh Ji continued, for several years, to hand write four additional copies of the holy scriptures. These four copies were dispersed, a copy each to: Sri Akal Takhat Sahib, Sri Takhat Patna Sahib, Sri Takhat Hazur Sahib and Sri Takhat Anandpur Sahib. Later the learned scholar inscribed another copy of the Sri Guru Granth Sahib in Arabic script. It was sent to the Middle East.

In 1706, before Guru Gobind Singh Ji traveled to the Deccan with Bahadur Shah, Guru Ji placed Baba Deep Singh in charge of Damdama Sahib. He sent Bhai Mani Singh Ji to head the Sangat at Harimander Sahib in Amritsar. Baba Deep Singh Ji spent many years at Damdama Sahib preaching Sikh values and teachings and doing service for the community. He was always ready to serve those in need and to fight for justice. Baba Ji also continued to write gutkas (books of hymns) distributing them to the Sikh community.

In about 1709, Baba Deep Singh Ji joined Banda Singh Bahadur, the Jathedar appointed by the Guru Gobind Singh before leaving for heavenly abode to fight for the freedom of Punjab. They fought together in the battle at Sirhind—the city in which Guru Gobind Singh Ji's younger sons had been killed. Although the Muslim army outnumbered the Sikhs significantly, the Sikh army was able to easily defeat the Muslim forces. During the battle, Wazir Khan was killed closing the chapter of tyranny of this Mughal leader.