The original concept was instructions given by rishi Narada Muni while on tour of earth he noticed tremendous amounts of sufferings all around due to malnutrition. He went to lord Vishnu and described the situation and was told with instructions to perform Pooja and the other stories to be narrated. One of the key instruction was to invite as many friends, relatives and neighbors to attend the ceremony and to feed them and to offer as many types of fruits as possible and the sufferings will be eliminated, and this was due to being well fed and consumption of fruits.