These four incarnations are –
- Mahotkata Vinayaka – this incarnation with ten arms and red colored body appeared during the Krita yuga. While some sources say that he was mounted on a lion, other believe that he was mounted on an elephant. This incarnation killed the demon brothers – Narantaka and Devantaka.
- Mayuresvara – the one with six arms and white complexion riding a peacock made an appearance during the Treta yuga. It is believed that he was born to Lord Shiva and Goddess Parvati. This incarnation of Lord Ganesha killed the demon – ‘Sindhu’.
- Gajanana – the one who has four arms and was born with a crimson complexion. He was born to Lord Shiva and Goddess Parvati in the Dvapara yuga. His vehicle was a tiny mouse. The incarnation appeared to kill a demon known as Sindura.
- Dhumraketu – this incarnation of Lord Ganesha is yet to appear. It is said that he would have two or four arms and a smoke-ash colored complexion. Mounted on a blue horse, he might appear during the end of the Kali yuga. Its aim would be to destroy all evil powers and restore peace and harmony in the world.