Kali Yugam
As the time is close to the ascendancy of Kali Yuga, a sage named Guru muni told Shiva, "Your greatness, the Kroni was created and fragmented into six and from that, five of them were made to take birth and since none obey you, all were destroyed by Vishnu(Mayon/Thirumal in Tamizh), and his spirit (the spirit Vishnu took only in the Avatars) was kept in Parvatha Ucchi Malai(In Sanksrit 'Uccha' means high, In Tamizh 'Malai' means Mountain. And by the sixth fragment, Kroni still has a birth in Kali Yugam." He also requested that in this yugam his sixth fragment should be created with a body with eight chans (spans - distance from the end of the thumb to the end of the little finger extended).
Accepting his request, Shiva replied, "Good, Won’t Vishnu had to come?" For that Deva Muni replied, "Vishnu was in his ‘Sleep of Wisdom’ (sleeping) in the world." Hearing this, Shiva assembled, Vasishta Guru of Govuha(? Needs Sanskrit equivalent), Devas of Deiva Lokam, the members of Vaikunta Lokam Kinneras(Kina nathar in Tamizh), Kimpurusha(Kimburudar in Tamizh),and members from all other worlds. He also assembled all the Deiva Ganas. Then he asked the gathering, Is Vishnu in Vaikuntam? If he is not there, then where is he? Also they repeated that, Vishnu was dead lying (without any activities) in the lower world (Earth).
Hearing this Shiva replied, "All the previous five fragments were destroyed since they did not respect us. Now it’s his sixth birth and even in this he doesn’t realize it no other chances will be provided and he will be sentenced to death. And so in this birth he will be created as a human being with abilities of aesthetics, wisdom, beauty, and sharp intelligence. Also all in the previous Yugas, Vishnu take the body of four spans and head one span. And in this yuga, Kali will be given the body of the same size of that of Vishnu in all previous yugas, so that he will have no chances for saying reason for his defeat as the previous ones. Does any one have any opinions about it?" All the Devas, chiranjeevin sages, and the brahmins, those who read scriptures all accepted this and so Shiva decided to create Kali.
Read more about this topic: Kaliyan