Distribution of transcendental literature going door-to-door is a Vaisnava tradition. Lord Nityananda and Haridas Thakur went door-to-door in Nadia, tolerating all insults and attacks, distributing Krishna's message.
Srila Prabhupada carried forward this mission distributing BTGs door-to-door in Delhi before coming to the US. After he founded ISKCON, devotees all around the world have been going out and distributing his books at peoples' doors.
New Delhi ISKCON has become a world leader in distributing Srila Prabhupada’s books. On my way home from Vrndavana, I stopped in New Delhi specifically to find out from the devotees there how they are doing it.
According to them . . .
The foremost reason is that HH Gopal Krsna Maharaja, their spiritual leader and G.B.C, is dedicated to book distribution and preaches strongly about it.
Consequently, ISKCON New Delhi has developed a multi-faceted approach to distributing Srila Prabhupada’s books.
"Please continue your program in the universities. They are the best places for propagation of our philosophy and the students are very eager for this crucial information. They are not aware of the futility of material education, which gives a paper degree only, because it is a common observation that the graduates are unable to find good employment and the students are becoming hippies, etc. So they are wanting something good and that best thing is Krishna consciousness.
—Srila Prabhupada Letter, January 10th, 1971
