On 8th August 2014, LIRNEasia held an event titled “Big data for development: Responsible use of mobile meta-data to support public purposes” in Negombo, Sri Lanka that was attended by all the MNOs in Sri Lanka as well as MNOs/ industry representatives from Pakistan, Bangladesh and India. The purpose of the event was two-fold: Show how mobile network big data could provide timely and policy relevant evidence for development using illustrations from Sri Lanka and elsewhere; and Discuss the draft guidelines developed by LIRNEasia for how MNOs could share their data with third parties using it for public good, whilst also minimizing the harms from such big data analytics. This event was the first in a series of steps that will hopefully lead towards the adoption of voluntary guidelines by MNOs to facilitate such activity. The presentations from the event as well as the draft guidelines are below. The agenda is available HERE.