New York: A day after India's telecom watchdog said no to Facebook's Free Basics, the social networking giant's founder and CEO Mark Zuckerberg conveyed his disappointment in a post but reiterated his commitment to keep working to break down barriers to connectivity in India.

In a move seen as an endorsement of net neutrality and a setback to offerings such as Facebook's Free Basics and Airtel Zero, India's telecom watchdog on Monday said no to discriminatory pricing of data content.