It is known from SB that Kali Purusa has come as soon as lord krishna departed the earth. As soon as he came he was beating the holy cow. After he was defeated by maharaja parikshit he begged for his presence in some places where there wealth, gambling, intoxication etc. But where did he come from suddenly?
why couldn't he affect the people of other ages ?
How could he influence the minds of the people in this complete yuga?
Why there is interference of Gods in the affairs of humans directly in this yuga?
It is also said that all the demi-gods left the earth before the beginning of kali yuga else they lose their powers.
How kali can be so powerful?
He cannot be unknown as he is one of the creation of the supreme. At the end of this yuga he will be eliminated by the supreme himself.
Why this creation and elimination of kali?