This week, CSIS research associate and friend of the pod, Sundar Ramanujam, takes over from Dan to host Mahfuz Sadique, Chief Communications Officer of bKash - a Bangladesh-based digital payments service provider that is rapidly changing how the financial sector engages with the Bangladeshi society. Sundar asks Mahfuz: is there a "secret recipe" which other developing countries can use to replicate bKash's success? Listen to the episode to find out his reply.