http://www.gosai.com/chaitanya/srila_sridhara_mj/sri_guru/sri_guru_10.html
Devotee: Can you explain how the principle of disciplic succession works? I Was under the impression that in your teaching there must ke an unkroken chain of disciplic succession beginning with God Himself, in order for the knowledge to be properly understood. But when I read Bhaktivedanta Swami Prabhupada's Bhagavad-gita As It Is, I found that the disciplic succession contains only thirty-eight names, although it says that the system is fifty centuries old. Is this a complete list, or are some names left out? How are we to understand these apparent historical discrepancies?
Srila Sridhara Maharaja: Our guru parampara, disciplic succession, follows the ideal, not the body; it is a succession of instructing spiritual masters, not formal initiating spiritual masters. In a song about our guru parampara written by Srila Bhaktisiddhanta Saraswati, it is mentioned, mahaprabhu sri caitanya radha krsna nahe anya rupanuga janera jivana : the highest truth of Krsna consciousness comes down through the channel of siksa gurus, instructing spiritual masters. Those who have the standard of realization in the proper line have been accepted in the list of our disciplic succession. It is not a diksa guru parampara, a succession of formal initiating gurus.
Diksa, or initiation is more or less a formal thing; <font color="red">the substantial thing is siksa </font color> , or spiritual instruction. And if our siksa and diksa gurus or instructing and initiating spiritual masters are congruent, then we are most fortunate. There are different gradations of spiritual masters. In the scriptures, the symptoms of the guru and the symptoms of the disciple have been described: the guru must be qualified in so many ways, and the disciple must also be qualified. Then when they come in connection, the desired result will be produced.
==
man you really have to research with Pure devotees to find out the answer. Thank god for internet /images/graemlins/wink.gif