The story of Ganesh Chaturthi centers on the birth of Lord Ganesha, created by Goddess Parvati and given life to guard her. When Ganesha blocked Lord Shiva’s entry, Shiva, in anger, beheaded him. To appease the grieving Parvati, Shiva revived Ganesha by attaching an elephant’s head to his body, making him Gajanana. Shiva and Parvati blessed Ganesha, making him the first deity to be worshiped in any ritual. This event laid the foundation for the celebration of Ganesh Chaturthi, a festival of devotion, wisdom, and prosperity.

The story of Ganesh Chaturthi is significant in Hinduism, detailing the birth of Lord Ganesha and the mystical events surrounding it. Here’s the detailed account:

The Birth of Lord Ganesha:

Lord Ganesha was born to Goddess Parvati and Lord Shiva. According to the story, one day, while Goddess Parvati was preparing to bathe, she needed someone to guard her. So, she created a figure out of the sandalwood paste (ubtan) she used for her body and infused life into it. This figure became her son, Ganesha, whom she entrusted with guarding her door.

The Encounter with Shiva:

As Goddess Parvati was bathing, Lord Shiva arrived at the entrance and tried to enter. Ganesha, following his mother’s orders, blocked Shiva’s path and refused to let him in. Despite repeated attempts by Lord Shiva to persuade him, Ganesha remained firm in his duty.

Ganesha's Beheading:

Enraged by Ganesha’s refusal to allow him entry, Lord Shiva, in his anger, struck Ganesha with his trident (Trishul), severing his head. When Goddess Parvati saw this, she was devastated and implored Shiva to revive her son. Moved by Parvati's grief, Shiva decided to bring Ganesha back to life.

The Elephant Head:

Lord Shiva instructed his followers to find the head of the first living being they encountered in the north direction. They found an elephant and brought back its head. Shiva then attached the elephant's head to Ganesha’s body and brought him back to life. Thus, Ganesha acquired the elephant head and became known as "Gajanana."

Ganesha's Status as the First Deity:

After reviving Ganesha, Lord Shiva and Goddess Parvati blessed him, declaring that Ganesha would be worshiped before all other gods. This means that Lord Ganesha is to be worshiped first in any auspicious ceremony or ritual.

Shiva and Parvati’s Joy:

With Ganesha's revival and his elevation as the foremost deity, both Lord Shiva and Goddess Parvati were filled with joy. Following this event, the festival of Ganesh Chaturthi began to be celebrated as the birthday of Lord Ganesha, where idols of Ganesha are installed and worshiped.

Other Stories:

- Ganesha’s Circumambulation: Another story tells of a competition between Ganesha and his brother Kartikeya to see who could circle the world the fastest. Ganesha, using his wisdom, circled his parents, Shiva and Parvati, considering them his entire world. This cleverness made him the winner.

- Ganesha and the Mahabharata: Ganesha is also believed to have been the scribe of the Mahabharata. Sage Vyasa asked Ganesha to write down the epic as he narrated it. Ganesha agreed on the condition that Vyasa would not stop reciting, or he would stop writing. Vyasa accepted, and Ganesha penned down the Mahabharata.

The story of Ganesh Chaturthi highlights Lord Ganesha's significance, wisdom, and attributes. This festival symbolizes devotion and reverence to Lord Ganesha and is celebrated with great enthusiasm throughout India.