Nand ke anand bhayo jai kanhaiya lal ki is a traditional Krishna bhajan, a type of devotional song, often sung during Janmashtami celebrations. The exact process of how it works is not explicitly mentioned in the provided evidence. However, it can be inferred that this bhajan is part of the midnight puja rituals, which are an essential aspect of Janmashtami celebrations. The midnight puja is a significant part of the festivities, where devotees worship Lord Krishna and sing bhajans like nand ke anand bhayo jai kanhaiya lal ki to express their devotion and gratitude.
The provided evidence lists 10 Krishna bhajans to sing during midnight puja, but it does not provide detailed information on the specific process or significance of nand ke anand bhayo jai kanhaiya lal ki. It is likely that this bhajan is sung as a way to connect with Lord Krishna and celebrate his birth, but the exact mechanism or purpose of singing this bhajan is not explicitly stated in the evidence.