What needs to be noted is that Airtel Zero violates the principles of net neutrality. The operator is essentially offering certain companies an unfair advantage in terms of cost of access and promotion of their services. This is the second time Airtel has made to the press for its notorious moves. Late December, the company had started to charge its customers extra and outside their existing internet data pack when using VoIP services such as Skype and Viber. The move received flak from consumers, forcing the company to retract it.