Following the deportation of his elder brother, Satguru Hari Singh took on the monumental task of sustaining the Namdhari (Kuka) movement amidst severe colonial government oppression.

[1] The colonial British authorities imposed harsh restrictions on the Namdhari Sikhs, declaring them rebels and severely limiting their movements and gatherings.

[2] Despite these challenges, Satguru Hari Singh persevered in maintaining both the freedom struggle and religious practices of the Namdhari Sikhs.

The restrictions severely limited the Namdhari Sikhs' ability to practice their faith, communicate with each other and continue their religious and social activities.

[7] Despite these challenges, the Namdhari Sikhs, under the leadership of Satguru Hari Singh, continued to maintain their religious practices and their struggle for independence, albeit under much more difficult circumstances.

Despite these formidable challenges, Satguru Hari Singh managed to sustain the Namdhari movement, preserve their religious and cultural heritage, and continue the struggle for independence.

Satguru Hari Singh initiated the practice of Akhand Paths (continuous recitations of the Sri Adi Guru Granth Sahib) despite government restrictions.

In a report submitted by J.P. Warburton in 1896, Kuka movement was described as 'from the beginning manifestly directed against the existing (referring to British) Government', while tracing its origins to Satguru Ram Singh and mentioning that under the supervision of Budh Singh, 'the inflammable material (referring to anti-colonial feelings) exists in abundance and needs only a spark to ignite it'.At Sri Bhaini Sahib, Satguru Hari Singh extended the free langar (community kitchen) to serve the famine-stricken population.

This initiative was not limited to feeding people alone; he also provided sustenance for their cattle, recognizing the importance of livestock in rural livelihoods.

The magnitude of Satguru Hari Singh's humanitarian work during the famine was noted by the Commissioner of Ludhiana, who impressed with this service, offered to donate 2,500 acres of land to Gurudwara Sri Bhaini Sahib for the continuation of the langar.