who was the most influential(non-religious)person to have ever lived on earth?

Ghengis Khan.

I agree with you, it was Adolf Hitler. He indoctrinated millions and millions of people. Todate, he still has a very big influence in many people across the world. Ghengis Khan, no. He might have been a brave fighter but was not influential. Maybe some people need to know what "influential" means. Undoubtedly, Hitler is the most influential man that ever lived. You can see him in the US, you can see in the UK, you can see him in Iran, he is all over the world. He is despised but emulated by the very people who despise him. Too bad his influence was negative, but he was a great man inhis own right!

its bhagat singh

Marcus Aurelis

is that possible, every person has some sort of religious affliation, even if agnostic or atheist

MAHATHMA GANDHI -UNDOUBTEDLY A REVOLUTIONARY PERSONALITY

Define non-religious... a person not directly related to a common religion?