Ganga Saptami Day is dedicated to the goddess Ganga. The Ganges was reborn on this day, so it is also known as the Ganges Pujan and the Ganges Jayanti.
According to Hindu mythology, Ganga came down to Earth on the day of Ganga Dussehra. When the mighty Ganga landed on Earth, Lord Shiva broke Ganga's descent and put her in her hair to prevent her Ganga from sweeping the entire globe. Later, Lord Shiva freed the Ganges to carry out his mission to purify the cursed souls of Bhagiratha's ancestors.
On the way to the Kingdom of Bagirata, her mighty streams and bubbling turbulence destroyed the ashram of the sage Yahunu. This offended the sage Yahunu, who drank all the water of the Ganges. Later, Bagirata and the gods prayed to Rishi Yahunu to free the Ganges so she could continue her mission. Satisfied with her prayers, Yahunu moved the Ganges away from her ears. According to legend
Jahnu Rishi released the Ganges from his ears at Saptami in Vaishakha Shukla Paksha. Because of this legend, this day is also known as Jahnu Saptami. The Ganges is also known as Janavi, the daughter of Rishi Jane.
On the Ganges, Saptami believers worship the goddess Ganges and bathe in the Ganges. A swim in the Ganges on the day of Gangasaptami is considered to be very fortunate.