It is very, very encouraging that you are holding kirtanas in public places and some way or other people are becoming interested.

These outdoor kirtanas should be rigidly followed at least one hour daily.

That will make our movement popular there.

We have good experience here in every city, especially Los Angeles, New York, Boston, and here in Columbus. This is making our movement very popular more and more,

So in any circumstances, you all go together outdoors for kirtana at least for one hour daily.

From Srila Prabhupada’s Letter to Krsna Dasa – Columbus, Ohio, May 17th 1969