Several festivals and celebrations are dedicated to Ganga Iomma, showcasing her importance in Hindu culture. One of the most significant festivals is the Ganga Dussehra, which commemorates the descent of the Ganges River from the heavens to the earth. During this festival, devotees take holy dips in the Ganges, perform pujas, and offer prayers to Ganga Iomma. Another significant celebration is the Kumbh Mela, a massive Hindu festival that takes place every 12 years, where millions of devotees gather to bathe in the sacred waters of the Ganges and other holy rivers.

According to Hindu mythology, Ganga Iomma is said to be the daughter of Lord Shiva, one of the principal deities in the Hindu pantheon. The mythological account states that Ganga was born from the locks of Shiva's hair, and her emergence is often associated with the churning of the ocean of milk, a pivotal event in Hindu mythology. As the story goes, the gods and demons collaborated to churn the ocean to produce the nectar of immortality, and Ganga emerged as a result of this cosmic event.

In recent years, Ganga Iomma has become a symbol of environmental awareness, as the Ganges River faces numerous threats from pollution, climate change, and human activities. Efforts to clean and restore the river have become a national priority in India, with the government launching initiatives to protect the river's ecological and cultural significance.

The worship of Ganga Iomma is deeply ingrained in Hindu culture, with numerous rituals and practices centered around her veneration. Devotees often perform elaborate pujas (worship ceremonies) and offer prayers to Ganga Iomma, seeking her blessings and protection. The sacred Ganges River is considered a hub of spiritual activity, with millions of devotees flocking to its banks to perform rituals, take holy dips, and scatter the ashes of their loved ones.