Further to my post at #4, I would like to add that the purpose of false Christs is to deceive the elect- those who have put their hope in Christ. So when Jesus mentioned these end time prophecies he was specifically talking about people who knew about Christ to some extent. Such people would attempt to impersonate Christ in order to deceive the believers.
One such example is a Korean man called Ahn Sahng Hong (already dead) who claimed to be Christ's second coming. His church is called the World Mission Society Church of God. His disciples visited my house to "preach the gospel," but I happened to question their teachings, which were from the Bible all right, but their interpretation was incorrect. I was surprised to see respectable people from good families following this phoney. These people can quote Bible verses left, right and centre. They are also well versed with Bible prophecy.
I doubt how much Satya Sai Baba knew about Christ or prophecy. He is just another con man of India.