Baba Gurbachan Singh Ji convened the Second Mussoorie Conference on May 14, 15 and 16, 1973. About 500 delegates from India and abroad participated in it. The Conference turned out to be a watershed in the history of the Mission as it proposed a code of conduct for the missionaries. It was also decided at this conference that while we may not hate others on account of their diet-habits, we ourselves should abstain from all kinds of intoxicants. Another decision was to observe austerity in marriages and other social functions and not to show off dowry, etc.
This was followed by a conference of Pracharaks in Ludhiana (Punjab) in 1975. This added clarity to the decisions taken at the Second Mussoorie Conference and prepared the missionaries to take the message of the Mission to masses with greater zeal and sense of commitment.
As in the case of any other radical crusade for truth or a popular movement for spiritual enlightenment, social reforms and moral regeneration in the world, the Sant Nirankari Mission too had its share of opposition, false propaganda and violent wrath. The voice of Truth first raised by Baba Buta Singh Ji and Baba Avtar Singh Ji accompanied by their practical approach to it, had already left the orthodox elements puzzled and amazed. Now, the rapid growth and wide-spread acceptability of the Mission under the spiritual guidance of Baba Gurbachan Singh Ji upset the detractors to the level of desperation.