This booklet, containing three articles by eminent Sikh scholars and historians, aims at bringing out similarities between Sikhism and the original Nirankari Mission as well as differences, bordering on enmity, between Sikhism and the modern splinter off shoot of Nirankari Mission called the Sant Nirankari Mandal. While the Nirankari Mission was a sort of Renaisance movement in Sikhism, the present Sant Nirankari Mandal is aggressively misinterpreting the sacred Sikh scripture and engaged in vilification campaign against Sikhism. This hostility resulted in Sikh Nirankari clashes in 1978 at Amritsar and Kanpur and resulted in the killing of peacefully protesting Sikhs. These three articles trace the evolution of Sikhism and Nirankari Movement and bring out the reasons for the 1978 clashes between the Sikhs and the followers of Sant Nirankari Mandal. All three authors as well as the proceedings of enquiry committed appointed by DGMC squarely blame the Sant Nirankari Mandal of committing acts of blasphemy against Sikhism and provoking the Sikhs. Their distortion of sacred Sikh text, promotion of personality cult and violation of Sikh code of conduct under the garb of being Sikhs are responsible for the present hostility. These members of this splinter sect have been branded as pseudo-Nirankaris. The articles are based on concrete Nirankari violations and acts of sacrilege.