[21] In March 2020, anti-cult activist Be Scofield published an article in her magazine The Guru reporting sexual abuse and rape of female followers and assistants including Dyson by Harbhajan Singh, based on "over a dozen original interviews".

[23] Sikh historian Trilochan Singh offered a contrasting perspective in his critical work entitled "Sikhism and Tantric Yoga."

"I am extremely worried about the manner in which Yogi Bhajan teaches Sikhism to American young men and women whose sincerity, nobility of purpose, and rare passion for oriental wisdom and genuine mystical experiences is unquestionably unique.

I am not prepared to take seriously his newly invented Guru Yoga in which his pious and uncritical followers must concentrate on a particular picture of Yogi Bhajan, which practice is called mental beaming.

"[24] Philip Deslippe, a historian of American religion, wrote a 2012 article, "From Maharaj to Mahan Tantric: The Construction of Yogi Bhajan's Kundalini Yoga", using 3HO source archive material and news articles to reveal how Harbhajan Singh recreated his own story after his first trip back to India:[25] I set out to answer the question "where did Kundalini Yoga as taught by Yogi Bhajan (KYATBYB) come from?"

I concluded that in the early years of 3HO, Yogi Bhajan was using the physical yoga of Swami Dhirendra Brahmachari and the persona and mantra of Baba Virsa Singh, and that the figure of Sant Hazara Singh only became prominent after the first trip to India in 1970-1971 when Yogi Bhajan had a falling out with Virsa Singh.Yogi Bhajan formed Sikh Dharma International as a California nonprofit religious corporation "organized to advance the religion of Sikh Dharma and as an association of religious organizations teaching principles of Sikh Dharma, including by ordination of ministers of divinity and operation of places of worship."

[29] Judge Mosman concluded that there was significant evidence that the 3HO corporate entities were religious in character and thus that the dispute could not be adjudicated in civil court.

[31][32] Golden Temple's cereal division was sold to Hearthside Food Solutions in May 2010 for $71 million; the executives were later ordered to return more than half of the sale price to a court-appointed receiver.

It grew into a $500 million-a-year company with federal contracts to protect numerous government buildings in Washington, DC and elsewhere, including courthouses, airports, and embassies.