The infiltration of the Sikhs (and its religion) is an ongoing theme from the Britshit Raj era.
Max Arthur Macauliffe an ICS officer of Punjab managed to infiltrate Sikh religion and engaged in translation of the Granth Sahib. However being ICS he effectively injected Abrahamic concepts into the text and made it as the new version. All Sikhs prior to this were followers of Sanatani Dharma (there is more references to Ram in Granth Sahib). In 1905, Arur Singh, manager of the Golden Temple, on being goaded by the British ordered the removal of all Hindu idols from the precincts of the Golden Temple. Till then the Hindu Brahmins had presided over different Sikh marriage ceremonies. They expelled the Brahmins from the Har Mandir, where the latter had worked as priests.
Guru Gobind Singh started Sikhism on the Baisakhi day of 1699. When Guru Gobind Singh died, Sikhs did not hold an inch of land. It was a tantric Hindu saint by the name of Banda Bahadur (Lachman Dev originally) who first wrested land back from the powerful son of Muslim Emperor Aurangezeb. For being a Hindu, Banda Bahadur's army, which contained Sikhs was split into two by Guru Gobind's wife – into Hindu faction and Sikh 5Ks faction.
Ranjeet Singh at the age of 21 was crowned the Maharajah of the Punjab on April 12, 1801. The Britshits infiltrated his empire via doctors and women. Ranjit Singh was fond of horses (1200 horses in his stable, 1000 reserved for him personally) and engaged in polo matches. Ranjit Singh was led into the Treaty of Amritsar in 1809, by the Britshits. They would make the fierce Ranjit Singh’s Sikh kingdom of Punjab act as a buffer between the marauding Muslims of Afghanistan and themselves. Ranjit Singh knew that as long as the Sikhs, Rajputs, Hindus and Muslims people bond together without the British playing dirty “divide and rule” tactics, as they did in the rest of India, he would be just fine. The treaty was signed by Mr. Charles Theophilus Metcalfe on behalf of British Government, whose Governor General was Lord Minto, and Maharaja Ranjit Singh at Amritsar on April 25, 1809. This treaty though would put a limit on extending the Sikh kingdom to the south, already occupied by the British, it would in theory allow expansion to the North and West without any interference from the British.
The northern rough terrain was where all the Mughal treasures were, including the Kohinoor diamond, originally stolen from India. The British kept low, even after Ranjit Singh vacuumed all the wealth from the North West areas, including the Kohinoor diamond and kept it in a nice pile. Ranjit Singh had the prized jewel fitted in his turban. Before Ranjit Singh died in 1839, his priests tried to get him to donate the diamond to the Temple of Jaggannath. Apparently he agreed, but by this time he was unable to speak due to a stroke. Kohinoor was signed away to queen Victoria in 1849 by 11 year old boy King Duleep Singh while in exile. Statement read, "The gem called Koh-I-noor, which was taken from Shah Shuja-ul-Mulk by Maharajah Ranjit Singh shall be surrendered by the Maharajah of Lahore to the Queen of England." On 6 April 1850 the Koh-i-noor left the shores of India (on Governor General, Lord Dalhousie orders) on board of the HMS Medea. As a reward Duleep Singh could play with the royal kids in London.
Prior to Ranjit Singh's death, the Britshit doctors worked on slowly poisoning Ranjit Singh via alcoholic drinks. The Brits would drive an irreversible wedge between the Rajputs and the Sikhs by making the gullible Sikhs suspect the loyal Rajput members of Ranjit Singh’s inner darbar and army. Sir Lepel Griffin a British propaganda mouthpiece wrote, "There are perhaps no characters in Punjab history more repulsive than Rajputs Dhian Singh and Gulab Singh Dogra". Nothing is further than the truth, as both these loyal men were handpicked by Ranjit Singh himself and Ranjit Singh had the capability to gauge men. Lepel's son Sir Lancelot Cecil Lepel Griffin later would be appointed the last political secretary of British India. Effectively the Britshits played their usual dirty tricks, dividing the hindus vs sikhs, pampering the king to allow him to collect the loot and then quietly bump him of by insiders. The same happened to Tippu Sultan in the South.
The unfinished business of dividing Hindus and Sikhs is single-handedly pursued by the Deep State of Brit, Canada and others.