The history of Kottarakkara Ganapathy Temple is deeply intertwined with the legend of the Mahabharata. It is believed that during their exile, the Pandavas visited this region. Bhima, known for his immense strength and appetite, was offered a large ball of rice (Unda) by Lord Ganapati, which he consumed with great satisfaction. Inspired by this event, a temple was built dedicated to Lord Ganapati. The temple gained prominence over time, becoming a significant religious center. The Unda offering remains a unique tradition, symbolizing Bhima's hunger and Lord Ganapati's benevolence. The temple has undergone several renovations and expansions throughout its history, reflecting its growing importance and the devotion of its followers.