Jagannatha Dasa Babaji first instructed Bhaktivinoda Thakura in the chanting of the mantra sri krsna caitanya prabhu nityananda sri advaita gadadhara srivasadi gaura bhakta vrnda.
Since when confidential mantras would be published? Only by a mercy of an acharya it becomes spread out. There is one similar however in Bhakti-ratnakara.