Waging an all-out war against WhatsApp Pay, Paytm's founder Vijay Shekhar Sharma had earlier alleged that Facebook is the "most evil company" in the world
Facebook was earlier forced to retreat on its plan to own India's internet traffic due to opposition to Free Basics
NPCI, however, stays silent on the key issue of two-factor authentication; sources, however, claim that WhatsApp will play by rules