The Damodara month is coming, and it will begin on the 18th of this October. So from that day, we'll observe Damodara-vrata for one month. From 18th to 17th November. The duty will be that in the evening you'll offer candle, a small candle, all of you, just before the Deity, not within the room, outside the room, and chant the Damodarastaka, namamisvaram. That is already printed in our song book. So this will be Damodara-vrata. That Damodara is explained here.
Srimad-Bhagavatam 1.8.31 -- Mayapura, October 11, 1974