All the students of the Kṛṣṇa consciousness movement have undergone the regular process of initiation. As enjoined in the Hari-bhakti-vilāsa by Sanātana Gosvāmī, tathā dīkṣā-vidhānena dvijatvaṁ jāyate nṛṇām: by the regular process of initiation, any man can become a brāhmaṇa. Thus in the beginning the students of our Kṛṣṇa consciousness movement agree to live with devotees, and gradually, having given up four prohibited activities – illicit sex, gambling, meat-eating and intoxication – they become advanced in the activities of spiritual life. When one is found to be regularly following these principles, he is given the first initiation (hari-nāma), and he regularly chants at least sixteen rounds a day. Then, after six months or a year, he is initiated for the second time and given the sacred thread with the regular sacrifice and rituals. After some time, when he advances still further and is willing to give up this material world, he is given the sannyāsa order. At that time he receives the title svāmī or gosvāmī, both of which mean “master of the senses.” Unfortunately, debauched so-called brāhmaṇas in India neither offer them respect nor accept them as bona fide sannyāsīs. Śrī Caitanya Mahāprabhu expected the so-called brāhmaṇas to offer respect to such Vaiṣṇava sannyāsīs. Nevertheless, it does not matter whether they offer respect or whether they accept these sannyāsīs as bona fide, for the śāstra describes punishment for such disobedient so-called brāhmaṇas. The śāstric injuction declares:
yatiṁ caiva tridaṇḍinam
namaskāraṁ na kuryād yaḥ
“One who does not offer respect to the Supreme Personality of Godhead, to His Deity in the temple or to a tridaṇḍī sannyāsī must undergo prāyaścitta [atonement].” If one does not offer obeisances to such a sannyāsī, the prescribed prāyaścitta is to fast for one day.
Ref >> Srila Prabhupada Vani.