Treta Yuuga Avatar

Description
Dashavatara refers to the ten avatars of Vishnu, the Hindu god of preservation. The word Dashavatara derives from daśa, meaning 'ten' and avatar (avatāra), meaning 'descent'. Thus, Vishnu is said to descend in form of an avatar to restore cosmic order. These Avatars play a major role in shaping human evolution through centuries. God Vishnu incarnates on Earth from time to time to eradicate evil forces, to restore the dharma and to liberate the worthy ones or devotees from the cycle of births and deaths.
Yuga
The first four avatars of Vishnu appeared in Satya or Krita Yuga, the first of the four Yugas, also called 'The Golden Age'. The next three appeared in Treta Yuga, the eighth and ninth in Dwapara Yuga and the tenth will appear

Varaha (Boar)
A SatyaYuga Avatar
When the demon Hiranyaksha stole the earth (goddess Bhudevi) and hid her in the primordial waters, Vishnu appeared as Varaha to rescue her. The battle between Varaha and Hiranyaksha is believed to have lasted for a thousand years. Varaha finally slew the demon and retrieved the Earth from the ocean, lifting it on his tusks, and restored Bhudevi to her place in the universe.
In the Vishnu Purana, Varaha represents yajna (sacrifice), as the eternal upholder of the earth. His feet represent the Vedas (scriptures). His tusks represent sacrificial stakes. His teeth are offerings. His mouth is the altar with tongue of sacrificial fire. The hair on his head denotes the sacrificial grass. The eyes represent the day and the night. His coarse hair represents sexual prowess. The head represents the seat of the Brahmin (priest). The mane represents the hymns of the Vedas. His nostrils are for oblation. His joints represent the various ceremonies. The ears are said to indicate rites (voluntary and obligatory). Thus, Varaha is the embodiment of the Supreme Being who brings order amidst chaos in the world by his sacrifice iv. Narasimha (

This humbled the other deities and extended his authority over the three worlds. The gods appealed to Vishnu for protection and he descended as the dwarf Vamana. During a yajna of the king, Vamana approached him and Bali promised him for whatever he asked. Vamana asked for three paces of land. Bali agreed, and the dwarf then changed his size to that of a giant. He stepped over heaven in his first stride, and the netherworld with the second. Bali realized that Vamana was Vishnu incarnate. In deference, the king offered his head as the third place for Vamana to place his foot. The avatar did so and thus granted Bali immortality. Then in appreciation to Bali and his grandfather Prahlada, Vamana made him ruler of Pathala, the