How Can Durga Kill The Modern Day Mahishasura?

Goddess Durga, each year, comes down to earth on the day of Mahalaya and marks the celebration of Durga Puja, starting from the 6th day of Navratri. Each year, with her arrival, she ensures the end of the societal evil, the modern-day Mahisasura. To know who is this modern-day Mahisasura and what symbolises his end with Durga Puja, read on.