Her parents, deeply distressed because they had not heard from their married daughter for a long time, devised a clever plan. They declared a special ceremony to worship Goddess Shashthi and formally invited their son-in-law along with their daughter to their home. When the couple arrived, the parents threw a grand feast in their honor to ensure the son-in-law felt highly respected and happy, which in turn guaranteed the daughter's well-being and freedom to visit her maternal home. Over the centuries, this domestic custom evolved into 'Jamai Shashthi'. It became a standard social practice across Bengal to ensure that married daughters, who traditionally moved far away to their husbands' homes, could return to their maternal homes at least once a year during the peak of summer, when the harvest is abundant and sweet fruits are in season.

On a cultural level, Jamai Shashthi celebrates the culinary heritage of Bengal. Coming at the height of the Jyeshtha month, it represents a beautiful celebration of nature's summer bounty. In Bengal, sweet mangoes like Himsagar, Lyangra, and Amrapali, along with giant jackfruits and sweet litchis, are offered to Goddess Shashthi before being served to the family. It is also an economic catalyst for local markets, where fishmongers stockpile giant Hilsa (Ilish) and Golda Chingri (Prawns), and sweetshops craft specialized giant sandesh and mishti, keeping traditional sweet-making artistry alive.