Whenever and wherever there is a decline in dharma, O descendant of Bharata, and a rise of adharma - at that time I manifest my-self… To protect the innocent and to punish the guilty...to reestablish dharma, I manifest era after era!!
As per the Kalki Purana… Kalki is prophesized to take birth in the home of a well known brahmana by the name Vishnuyasa and his wife Sumati in the village of Shambhala. He will train extensively in martial arts and weaponry under guru Parashurama-the warrior worshipped by all warriors. After doing immense penance for over ten years in the mountains for Rudra, he will receive the sword, Ratnamaru and also his vehicle, Devadatta – the white horse. Kalki will then annihilate all evil in this age of darkness and lead humanity to the age of truth, Satya Yuga…