An Australian thriller series of three books, The Purifier is the opening salvo.
From the Blurb:
The Purifier is the story of a fanatical priest with ideas of world dominance, and his two power hungry children.
The Purifier is Paavan Chandra, a priest who is excommunicated from the Zoroastrian Church and who founds his own religion in India which spreads his word around the globe. Paavan’s mission is to destroy capitalism, and to form world government.